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LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details

Thermo Scientific 1371 5' Biosafety Cabinet

Fully Tested & Warrantied*
Brand : Thermo
Product Code : SKU 0870AA BIO CAB

Shipping

All products ship from our 30,000 sq. ft. Haverhill, MA warehouse

Thermo Scientific 1371 5' Class II Type A2 Biosafety Cabinet

Refurbished Thermo Scientific 1371 5-Foot Biosafety Cabinet for Sale

The Thermo Scientific 1371 is a 5-foot Class II Type A2 biosafety cabinet designed for laboratories that need more working space than a standard 4-foot BSC without moving to the footprint of a full 6-foot cabinet. Part of Thermo Scientific's proven 1300 Series A2 platform, the 1371 combines a 59.1-inch-wide interior workspace, 10-inch working sash opening, 304 stainless steel chamber, intelligent airflow management, and energy-efficient brushless DC motor technology.

The 5-foot width is one of the most important reasons to consider the Thermo 1371. While 4-foot and 6-foot biosafety cabinets are common choices for laboratory installations, the 5-foot format provides a useful middle ground for researchers who find a 4-foot cabinet restrictive but do not need—or have room for—the additional width of a 6-foot model. For laboratories specifically seeking a used or refurbished 5-foot biosafety cabinet, the 1371 provides an especially attractive configuration.

With approximately 59.1 inches of interior width, researchers have room to organize culture vessels, media bottles, pipettes, sample racks, reagent containers, and supporting equipment without unnecessarily crowding the work area. At the same time, the approximately 63-inch exterior width can make the 1371 easier to incorporate into existing laboratory layouts than larger 6-foot cabinets.

The 1371 also features a 10-inch operating sash opening, providing generous vertical access to the work chamber. Its 304 stainless steel interior offers a durable, smooth surface well suited to frequent cleaning and disinfection in cell culture, biotechnology, pharmaceutical, microbiology, and other contamination-sensitive laboratory environments.

At American Instrument Exchange, every Thermo Scientific 1371 biosafety cabinet is inspected and tested by our technicians prior to shipment. Unless otherwise specified, new HEPA filters are installed at our facility before delivery. This unit includes a stand and a 90-day warranty from American Instrument Exchange. Laboratories outfitting or expanding biological research facilities may also browse our refurbished biosafety cabinets, CO₂ incubators, centrifuges, laboratory refrigerators, freezers, and other laboratory equipment to build a complete research workflow.

Key Features

  • Class II Type A2 biosafety cabinet

  • Less-common 5-foot cabinet configuration

  • Approximately 63-inch exterior cabinet width

  • Approximately 59.1-inch-wide interior workspace

  • 10-inch working sash opening

  • 304 stainless steel chamber

  • Large work area without the footprint of a 6-foot BSC

  • Independent supply and exhaust blower system

  • SmartFlow airflow management

  • Digital Airflow Verification

  • HEPA-filtered vertical airflow

  • Energy-efficient brushless DC motor technology

  • Night Set-Back reduced-flow operation

  • SmartFlow performance indicator

  • 10-degree sloped front for improved ergonomics

  • Stainless steel work surface

  • Approximately 65 dBA operating noise

  • 120V electrical configuration

  • Stand included

  • New HEPA filters included unless otherwise specified

  • 90-day warranty from American Instrument Exchange

Overview

The Thermo Scientific 1371 provides a particularly useful configuration within the 1300 Series A2 family by combining a 5-foot work area, 10-inch operating opening, and stainless steel chamber. For laboratories that need additional working room but cannot justify the footprint of a 6-foot cabinet, the 1371 can provide an excellent balance between workspace and laboratory space efficiency.

As a Class II Type A2 biosafety cabinet, the Thermo 1371 is designed to provide personnel, product, and environmental protection. Inward airflow through the front opening helps protect the operator from aerosols generated inside the cabinet. HEPA-filtered vertical downflow helps protect samples and materials from airborne contamination, while exhaust air passes through HEPA filtration before leaving the cabinet.

Thermo's 1300 Series uses independent supply and exhaust blowers to help maintain the appropriate relationship between inflow and downflow velocities. The cabinet's electronic monitoring system provides real-time operating information and alerts the operator when airflow or sash conditions move outside appropriate parameters.

The 5-foot workspace is where the 1371 becomes especially interesting. With approximately 59 inches of interior width, it provides nearly a foot of additional working width compared with a typical 4-foot cabinet. That additional room can be valuable when procedures involve multiple culture vessels, media bottles, pipetting equipment, tube racks, small instruments, or larger experimental setups.

At the same time, the cabinet is approximately 63 inches wide externally, allowing it to occupy substantially less wall space than a 6-foot Thermo 1300 Series cabinet. For laboratories trying to maximize usable workspace within a constrained room layout, this intermediate size can be an excellent solution.

Why Choose a 5-Foot Thermo Scientific 1371?

The 1371 is particularly attractive for laboratories that have discovered that 4 feet is not quite enough workspace, but 6 feet is more cabinet than they need.

A standard 4-foot biosafety cabinet is sufficient for many routine cell culture and microbiology procedures, but work areas can become crowded when researchers introduce multiple culture vessels, pipette racks, media bottles, aspiration equipment, and other materials. Crowding can make workflows more difficult to organize and increases the importance of carefully maintaining unobstructed airflow grilles.

A 6-foot cabinet solves the workspace problem but requires additional laboratory floor and wall space. In an equipment-dense cell culture room, that extra width may compete with incubators, centrifuges, refrigerators, microscopes, or other essential equipment.

The 5-foot Thermo 1371 bridges that gap. Its approximately 59.1-inch interior provides meaningful additional working room over a 4-foot cabinet while retaining a more manageable footprint than a 6-foot model.

The format can also be valuable when replacing an existing 5-foot biosafety cabinet. Laboratories designed around this less-common cabinet width may find that changing to a 4-foot model sacrifices useful workspace, while installing a 6-foot replacement may require changes to the laboratory layout. A refurbished 5-foot 1371 can therefore be particularly useful when maintaining an existing equipment footprint is important.

For laboratories specifically searching for a used or refurbished 5-foot biosafety cabinet, the Thermo Scientific 1371 deserves strong consideration.

5-Foot vs. 4-Foot vs. 6-Foot Biosafety Cabinets

Selecting the correct cabinet width involves more than simply choosing the largest BSC that will fit in the laboratory.

A 4-foot biosafety cabinet offers excellent space efficiency and is sufficient for many routine procedures performed by a single researcher. It is often the best choice for smaller cell culture rooms, startup laboratories, and facilities where wall space is limited.

A 6-foot biosafety cabinet provides considerably more working room and is advantageous for higher-throughput procedures, large culture vessels, extensive equipment setups, or workflows that regularly become crowded inside smaller cabinets. The tradeoff is the larger laboratory footprint.

The 5-foot Thermo 1371 occupies the middle ground. Its 59.1-inch-wide interior provides approximately one additional foot of workspace compared with Thermo's 4-foot platform, yet the 63-inch exterior width remains substantially narrower than the approximately 75-inch exterior width of Thermo's 6-foot cabinets.

For laboratories that need additional room without sacrificing another foot of valuable wall space, the 1371 can therefore be an unusually practical solution.

SmartFlow Airflow Management & Energy-Efficient Operation

The Thermo Scientific 1371 incorporates the airflow management technology used throughout the 1300 Series A2 platform.

Independent supply and exhaust blowers help maintain the proper balance between inflow and downflow air velocities. The cabinet's SmartFlow monitoring system provides operators with information about airflow performance and available compensation capacity as operating conditions change.

The LCD control system displays real-time performance information, while audible and visual alarms alert users to conditions such as an incorrect sash position or airflow outside acceptable operating parameters.

Thermo also designed the 1300 Series around energy-efficient brushless DC motor technology. When the front sash is closed, Night Set-Back operation reduces blower speed while maintaining filtered airflow within the cabinet. This can reduce energy consumption during periods when the cabinet is not actively being used and can also help reduce heat output into the laboratory.

For facilities operating several biosafety cabinets, these efficiency improvements can become increasingly meaningful over the working life of the equipment.

Compatible Laboratory Equipment

The Thermo Scientific 1371 fits naturally into cell culture, biotechnology, pharmaceutical, microbiology, and clinical research workflows where samples routinely move between several pieces of laboratory equipment.

For cell culture applications, the 1371 is frequently paired with CO₂ incubators for maintaining cultures, refrigerated centrifuges for harvesting and processing samples, laboratory refrigerators for storing media and reagents, and ultra-low temperature freezers for long-term preservation of biological materials.

Inverted microscopes, laboratory autoclaves, water baths, cryogenic storage systems, and additional biosafety cabinets can further support complete biological research workflows.

American Instrument Exchange maintains a broad inventory of professionally refurbished laboratory equipment, allowing laboratories to source multiple compatible instruments from a single supplier while simplifying procurement and reducing equipment lead times.

Common Applications

  • Mammalian cell and tissue culture

  • Stem cell research

  • Molecular biology

  • Microbiology

  • Virology

  • Pharmaceutical research and development

  • Biotechnology research

  • Vaccine research

  • Gene and cell therapy research

  • Clinical and diagnostic laboratory procedures

  • Higher-throughput sample preparation

  • University and government life-science research

Ideal Laboratory Environments

The Thermo Scientific 1371 is particularly well suited for biotechnology companies, pharmaceutical research laboratories, university research centers, hospital laboratories, contract research organizations, clinical facilities, startup laboratories, and other life-science organizations requiring Class II Type A2 containment.

Its 5-foot width makes it especially useful for laboratories where a conventional 4-foot cabinet does not provide quite enough workspace but a 6-foot cabinet would consume more laboratory space than necessary. It can also be an excellent replacement option for facilities already designed around a 5-foot BSC footprint.

Key Specifications

Specification Details
Manufacturer Thermo Scientific
Model 1371
Series 1300 Series A2
Cabinet Type Class II Type A2 Biosafety Cabinet
Nominal Width 5 ft
Exterior Dimensions Approximately 63.0" W × 31.5" D × 61.8" H
Interior Width Approximately 59.1"
Interior Depth Approximately 24.8"
Working Sash Opening 10"
Interior Chamber 304 Stainless Steel
Work Surface Stainless Steel
Filtration HEPA Supply and Exhaust
Airflow System Independent Supply and Exhaust Blowers
Airflow Monitoring SmartFlow / Digital Airflow Monitoring
Noise Level Approximately 65 dBA
Maximum Work Area Load Approximately 165 lb
Cabinet Weight Approximately 507 lb
Electrical 120V, 50/60 Hz
Plug NEMA 5-15
Stand Included
HEPA Filters New Filters Included Unless Otherwise Specified
Warranty 90 Days from American Instrument Exchange

Specifications compiled from Thermo Scientific manufacturer literature and American Instrument Exchange product information.

Why Buy a Refurbished Thermo Scientific 1371 Biosafety Cabinet?

The Thermo Scientific 1371 offers an unusual combination of workspace, space efficiency, stainless steel construction, and proven Class II Type A2 containment technology. Its 5-foot width is particularly valuable for laboratories that need more working room than a standard 4-foot cabinet but do not want to dedicate the floor space required by a 6-foot BSC.

With approximately 59 inches of interior width, the 1371 provides meaningful additional room for culture vessels, pipettes, media bottles, sample racks, aspiration equipment, and other materials used during biological procedures. At the same time, its approximately 63-inch exterior width allows it to fit into laboratory layouts where a 6-foot cabinet may be unnecessarily large or simply will not fit.

The 1371 also combines its intermediate width with a 10-inch working opening and one-piece 304 stainless steel interior. The stainless steel chamber provides a durable surface well suited to frequent cleaning and disinfection, while the larger operating aperture provides convenient access to the work area.

For laboratories specifically searching for a used or refurbished 5-foot biosafety cabinet, the Thermo Scientific 1371 can be an especially attractive find. Professionally refurbished units allow laboratories to retain this less-common cabinet size rather than redesigning an existing workspace around a more commonly available 4-foot or 6-foot replacement.

Purchasing a refurbished Thermo 1371 from American Instrument Exchange can also substantially reduce acquisition cost compared with purchasing a new BSC while providing laboratories with a cabinet that has been inspected, serviced, and prepared for continued laboratory use.

Refurbishment & Testing Process

Every Thermo Scientific 1371 offered by American Instrument Exchange undergoes a detailed inspection, cleaning, refurbishment, and testing process prior to shipment. Our technicians evaluate the cabinet's mechanical, electrical, control, and airflow-related systems and identify components requiring repair or replacement.

Unless otherwise specified, new HEPA filters are installed at our facility before shipment. The blower system, airflow monitoring system, alarms, lighting, electrical components, sash operation, and other cabinet functions are inspected and tested for proper operation.

The one-piece stainless steel chamber and work surface are professionally cleaned and inspected. Worn or damaged functional components are repaired or replaced whenever practical as part of the refurbishment process.

Our objective is not simply to determine whether a used biosafety cabinet powers on. Each refurbished Thermo 1371 is prepared for installation and subsequent field certification so it can return to productive laboratory service following delivery.

Certification Readiness

The Thermo Scientific 1371 is a Class II Type A2 biosafety cabinet from the Thermo 1300 Series A2 platform. Thermo states that the series was tested and certified in accordance with NSF/ANSI 49 and designed to protect the user, environment, and research materials from appropriate biological hazards and cross-contamination.

Proper field certification remains essential after installation because transportation, placement, laboratory airflow, and other site-specific conditions can affect cabinet performance.

Certification evaluates critical operating characteristics including inflow and downflow velocities, HEPA filter integrity, airflow patterns, alarms, and other parameters applicable to Class II Type A2 cabinet operation.

Biosafety cabinets should also be recertified at appropriate intervals and following events that may affect containment performance, including relocation, HEPA filter replacement, or significant internal service.

For laboratories throughout Greater Boston and New England, AIE Laboratory Services provides biosafety cabinet certification, preventative maintenance, troubleshooting, repairs, HEPA filter replacement, decontamination, relocation, and recurring certification services.

This gives laboratories purchasing a refurbished Thermo Scientific 1371 from American Instrument Exchange access to an affiliated service organization that can continue supporting the cabinet after installation.

Shipping & Installation

The Thermo Scientific 1371 is professionally prepared and packaged for commercial freight shipment from American Instrument Exchange. Its 5-foot footprint can provide an installation advantage over larger 6-foot cabinets, but the delivery route and final laboratory location should still be evaluated before shipment.

Customers should verify doorway widths, hallways, elevators, loading areas, ceiling clearance, electrical service, and the dimensions of the final installation location. The cabinet should also be positioned away from doors, HVAC registers, heavy pedestrian traffic, and other sources of disruptive air movement whenever possible.

The approximately 63-inch cabinet width is especially important when replacing another 5-foot BSC. A laboratory originally designed around a 5-foot cabinet may be able to install the 1371 without sacrificing workspace by downsizing to a 4-foot unit or modifying the room to accommodate a larger 6-foot cabinet.

American Instrument Exchange can assist with freight coordination, inside delivery, laboratory placement, and installation planning when required. After the cabinet reaches its final operating location, it should be field certified before being placed into biological service.

Related Laboratory Equipment

The Thermo Scientific 1371 is frequently installed as part of a complete cell culture, biotechnology, pharmaceutical, microbiology, or clinical research workflow.

For cell culture applications, the 1371 can be paired with CO₂ incubators for maintaining cultures, refrigerated centrifuges for sample processing and harvesting, laboratory refrigerators for media and reagent storage, and ultra-low temperature freezers for long-term preservation of biological samples.

Inverted microscopes, laboratory autoclaves, water baths, cryogenic storage systems, and additional biosafety cabinets can further support complete research workflows.

American Instrument Exchange maintains a broad inventory of professionally refurbished laboratory equipment, allowing laboratories to source multiple pieces of compatible equipment through a single supplier while simplifying procurement and reducing equipment lead times.

Thermo Scientific 1371 Frequently Asked Questions

Is the Thermo Scientific 1371 really a 5-foot biosafety cabinet?

Yes. The Thermo Scientific 1371 is a 5-foot Class II Type A2 biosafety cabinet. Thermo's documentation groups the 1371 specifically among its 5-foot models with a 10-inch working opening. The 5-foot platform measures approximately 63 inches wide externally and provides approximately 59.1 inches of interior working width.

This makes the 1371 a useful intermediate-size cabinet between the much more familiar 4-foot and 6-foot BSC configurations.

Are refurbished 5-foot biosafety cabinets harder to find?

Five-foot biosafety cabinets are a less-common configuration than the 4-foot and 6-foot cabinets frequently encountered in laboratory installations and on the refurbished equipment market.

That can make an available refurbished 5-foot cabinet particularly useful for laboratories specifically trying to replace an existing 5-foot BSC or maintain a laboratory layout designed around this intermediate size.

American Instrument Exchange inventory changes regularly, so laboratories specifically looking for a 5-foot cabinet are encouraged to contact us regarding current and incoming availability.

Why choose a 5-foot BSC instead of a 4-foot model?

A 5-foot cabinet provides additional working room without requiring the full footprint of a 6-foot BSC. The Thermo 1371 provides approximately 59.1 inches of interior width, compared with roughly 47 inches for Thermo's 4-foot 1300 Series platform.

That extra working width can be valuable when procedures involve numerous culture vessels, pipette racks, media bottles, aspiration equipment, or small instruments that would make a 4-foot cabinet feel crowded.

For laboratories that routinely find themselves running out of room inside a 4-foot BSC, the 1371 can provide a meaningful increase in usable workspace.

Why choose the Thermo 1371 instead of a 6-foot biosafety cabinet?

Not every laboratory needs the additional footprint of a 6-foot BSC. The Thermo 1371 provides considerably more workspace than a 4-foot cabinet while remaining roughly a foot narrower externally than Thermo's 6-foot platform.

That can leave valuable wall and floor space available for CO₂ incubators, centrifuges, refrigerators, microscopes, or other laboratory equipment.

The 5-foot format can therefore be particularly useful in equipment-dense cell culture rooms where both working space and laboratory floor space are valuable.

Does the Thermo 1371 have a stainless steel interior?

Yes. Thermo identifies the 1371 package as having a one-piece stainless steel interior. Thermo's site-preparation documentation specifies one-piece 304 stainless steel side and rear walls with a No. 4 finish, along with a 304 stainless steel work surface.

This provides a smooth, durable chamber suited to frequent cleaning and disinfection.

What is the difference between the Thermo 1371 and Thermo 1369?

Both are 5-foot Thermo 1300 Series A2 packages with 10-inch work apertures, but their interior construction differs.

The Thermo 1371 has a one-piece stainless steel interior, while the Thermo 1369 uses the SmartCoat interior. Thermo's ordering literature specifically identifies these as the stainless steel and SmartCoat alternatives within the 5-foot/10-inch configuration.

For laboratories that prefer stainless steel chamber construction for routine cleaning and durability, the 1371 may therefore be the more attractive option.

Is the Thermo 1371 suitable for high-throughput cell culture?

Yes. The approximately 59-inch-wide work area provides considerably more room than a typical 4-foot cabinet for culture vessels, pipettes, media bottles, sample racks, and supporting equipment.

This additional space can improve workflow organization without requiring laboratories to install a full 6-foot cabinet.

Users should still avoid overcrowding the work chamber or blocking the front and rear airflow grilles, as proper airflow remains essential to containment performance regardless of cabinet width.

What do SmartFlow and airflow monitoring do on the Thermo 1371?

The Thermo 1300 Series incorporates real-time airflow adjustment and monitoring designed to maintain appropriate inflow and downflow conditions. Thermo describes its SmartFlow Indicator as showing the cabinet's ability to compensate as filter resistance changes.

These features provide useful ongoing performance information, but they do not replace routine field certification.

What does a CAL message or airflow alarm on a Thermo 1371 mean?

A persistent CAL message or airflow alarm indicates that the cabinet's airflow or monitoring system requires evaluation. Possible causes may involve calibration status, HEPA filter loading, blower performance, sash position, or another condition affecting airflow.

A biosafety cabinet displaying a persistent airflow warning should be evaluated rather than assumed to be operating correctly.

For laboratories throughout New England, AIE Laboratory Services can troubleshoot Thermo 1300 Series biosafety cabinets, evaluate airflow performance, perform necessary repairs, replace filters when required, and recertify the cabinet following service.

Are new HEPA filters installed in this refurbished Thermo 1371?

Unless otherwise specified, American Instrument Exchange installs new HEPA filters prior to shipment. The cabinet is inspected, cleaned, tested, and prepared for field certification following installation at the customer's laboratory.

I need to replace an existing 5-foot biosafety cabinet. Can American Instrument Exchange help?

Yes. This is one of the situations where the Thermo 1371 can be particularly valuable.

If an existing laboratory layout was designed around a 5-foot cabinet, replacing it with another 5-foot BSC can preserve working space and minimize changes to the surrounding laboratory layout.

Because 5-foot cabinets are less commonly available than 4-foot and 6-foot models, American Instrument Exchange can also help customers evaluate current inventory and identify appropriate alternatives when an exact replacement model is unavailable.

Can I see the actual Thermo 1371 before it ships?

Yes. Customers can contact American Instrument Exchange with questions about the condition, configuration, included accessories, or other details of the specific refurbished unit being offered.

Additional photographs or information may be available upon request. This can be particularly useful when verifying stand configuration, utility fixtures, cosmetic condition, or installation requirements before purchasing used or refurbished equipment.

Does the Thermo 1371 need to be certified after installation?

Yes. The cabinet should be field certified after installation and before being placed into biological service. Certification confirms airflow performance, HEPA filter integrity, and other containment parameters in the cabinet's actual laboratory environment.

Regular recertification should also be incorporated into the laboratory's biosafety cabinet maintenance program, particularly after relocation, HEPA filter replacement, or service that could affect containment performance.

Do you sell replacement parts or HEPA filters for the Thermo 1371?

American Instrument Exchange generally retains available used components to support the refurbishment and repair of additional Thermo 1300 Series cabinets rather than routinely selling used parts individually. Depending on the component and current availability, however, we may be able to help identify or source an appropriate replacement.

Replacement HEPA filters can be sourced through manufacturers and qualified filter suppliers. Because filter replacement can involve exposure to the contaminated side of the filtration system, appropriate biosafety procedures must be followed.

For customers in New England, AIE Laboratory Services can provide cabinet decontamination, HEPA filter replacement, testing, and subsequent certification.

I purchased my Thermo 1371 somewhere else. Can AIE Laboratory Services still service it?

Yes. The cabinet does not need to have been purchased from American Instrument Exchange for AIE Laboratory Services to certify, maintain, troubleshoot, or repair it.

Our field service team supports biosafety cabinets throughout New England regardless of where the equipment was originally purchased. This can be especially useful for laboratories operating equipment acquired from several different suppliers.

Can American Instrument Exchange supply several 5-foot biosafety cabinets?

Because 5-foot cabinets are a less-common configuration, availability of several matching units will depend on current inventory. Customers requiring multiple 5-foot cabinets should contact American Instrument Exchange to discuss quantities, timelines, and available models.

If identical units are not available, we may also be able to identify compatible 5-foot cabinets or other configurations that meet the laboratory's workspace and containment requirements.

For larger laboratory build-outs, American Instrument Exchange can also supply complementary equipment including CO₂ incubators, centrifuges, microscopes, refrigerators, freezers, ultra-low temperature freezers, and other laboratory equipment.

Can AIE Laboratory Services repair an older Thermo 1371?

Yes. For laboratories throughout Greater Boston and New England, AIE Laboratory Services can provide certification, preventative maintenance, troubleshooting, HEPA filter replacement, repairs, decontamination, relocation, and related services for Thermo 1300 Series biosafety cabinets.

For an existing 5-foot cabinet, repair may be particularly worth considering when the alternative requires moving to a different cabinet width and changing the surrounding laboratory layout.

AIE Laboratory Services can evaluate the cabinet, identify problems affecting its operation or certification, and help determine whether continued repair is practical.

Why purchase a refurbished Thermo Scientific 1371 from American Instrument Exchange?

American Instrument Exchange specializes in professionally refurbished laboratory equipment rather than simply reselling used equipment. Each Thermo Scientific 1371 is inspected, cleaned, tested, and prepared for continued laboratory service by experienced technicians.

Unless otherwise specified, new HEPA filters are installed prior to shipment, and this unit is backed by a 90-day warranty from American Instrument Exchange. Customers throughout New England can also access ongoing certification, maintenance, and repair services through AIE Laboratory Services.

For laboratories specifically searching for a refurbished 5-foot Class II Type A2 biosafety cabinet, the Thermo Scientific 1371 is an especially compelling option. It provides substantially more workspace than a conventional 4-foot cabinet while avoiding the additional footprint of a 6-foot BSC, and combines that intermediate size with a 10-inch operating opening, stainless steel chamber, intelligent airflow management, and the proven Thermo 1300 Series platform.

CLICK HERE to see the Thermo Scientific 1371 5' A2 biosafety cabinet on our YouTube channel

Testing Procedures for Used and Refurbished Biosafety Cabinets

Ensure Containment, Airflow Integrity, and Operator Safety

Used and refurbished biosafety cabinets (BSCs) from American Instrument Exchange are thoroughly tested to ensure they meet NSF/ANSI 49 performance standards for containment, airflow uniformity, and HEPA filtration. Each Class I, II, or III unit is evaluated through a series of specialized inspections and certifications, ensuring the cabinet performs reliably in research, clinical, and pharmaceutical lab environments.

Why Testing Used Biosafety Cabinets Is Essential

Before any biosafety cabinet is deployed in a working lab, it must be tested for:

• HEPA filter integrity and leak-free performance
• Inflow and downflow air velocity balance
• Containment efficiency and personnel protection
• Electrical system function and safety compliance
• Cleanliness and readiness for sterile applications

Proper testing of refurbished biosafety cabinets helps prevent cross-contamination, exposure to hazardous materials, and airflow disruption—critical for maintaining laboratory protocols. Our structured multi-point BSC testing protocol ensures dependable protection for operators, products, and the lab environment.

Key Testing Procedures for Refurbished and Used Biosafety Cabinets

1. Initial Visual Inspection

• Inspect exterior panels, window sashes, hinges, and seals for signs of wear or damage
• Confirm visibility and integrity of the viewing window
• Check power cords, display screens, and control interfaces for usability

2. Cabinet Decontamination and Cleaning

• Interior and exterior cleaned with non-corrosive disinfectants
• Decontamination protocols followed to remove biological contaminants
• Work surface, sidewalls, and return air grills are fully sanitized

3. HEPA Filter Integrity Testing (DOP/PAO Leak Test)

• Conduct aerosol challenge test using PAO or DOP to verify HEPA filter seal integrity
• Identify and resolve any filter leaks in accordance with NSF/ANSI 49 standards
• Ensure HEPA filters are correctly seated and uncompromised

4. Inflow and Downflow Velocity Testing

• Measure air velocities using calibrated thermo-anemometers
• Confirm inflow velocity meets requirements
• Verify downflow uniformity within the work zone to prevent turbulence and contamination

5. Airflow Smoke Pattern Testing

• Conduct visual smoke tests to demonstrate laminar airflow and containment
• Confirm that airflow barriers prevent cross-contamination and exposure

6. Electrical Safety and Alarm System Checks

• Inspect grounding, insulation resistance, and GFCI protection
• Test alarm functionality for sash position, airflow disruption, and power failure
• Verify interior lighting, outlets, and blower controls operate reliably

7. Final Certification and Quality Assurance

• Run full performance test cycle and confirm compliance with NSF/ANSI 49 and manufacturer specs
• Document data and generate a detailed service report

Guaranteed Performance from American Instrument Exchange

All refurbished biosafety cabinets from American Instrument Exchange are tested and verified to ensure maximum containment, user protection, and airflow performance. Whether used for microbiology, tissue culture, pharmaceutical compounding, or other work necessitating containment, our BSCs meet industry standards—so your team can work safely and confidently from day one.

Repair and Refurbishment Protocol for Used Biosafety Cabinets

Certified Protection and Performance from American Instrument Exchange

At American Instrument Exchange, every used biosafety cabinet (BSC) we offer is thoroughly repaired and refurbished to meet the highest standards for safety, airflow performance, and compliance. Whether it’s a Class I, Class II Type A2/B2, or Class III unit, we follow a meticulous refurbishment process to ensure your BSC provides reliable containment, sterile workspace conditions, and long-term durability.

Why Choose a Refurbished Biosafety Cabinet from American Instrument Exchange?

  • Fully tested and certified for airflow integrity and containment
  • Backed by warranty and performance guarantee
  • Cost-effective alternative to new biosafety cabinets
  • Environmentally responsible through expert reuse and restoration
  • Serviced by experienced technicians trained in NSF/ANSI 49 protocols

Step-by-Step Refurbishment Protocol

Every biosafety cabinet at American Instrument Exchange undergoes the following comprehensive multi-stage process to ensure it is lab-ready:

1. Initial Intake & Inspection

• Visual inspection of cabinet exterior, control panel, and sash mechanism
• Evaluation of hinges, seals, gaskets, and electrical components
• Missing parts or functional issues are documented for repair

2. Cleaning and Decontamination

• Full internal and external cleaning using non-abrasive, disinfectant-safe products
• Decontamination protocols followed to remove biohazardous or chemical residue
• Removable surfaces, work trays, and grilles are cleaned and sanitized

3. Mechanical and Electrical Repair

• Repair or replacement of worn components, including sash latches, lighting, and controls
• Electrical systems including switches, alarms, and outlets are tested and serviced
• Wiring is inspected and repaired to meet safety and performance standards

4. HEPA Filter Evaluation and Replacement

• Filters are tested for integrity using DOP/PAO aerosol challenge testing
• HEPA filters are replaced with OEM or equivalent filters
• Filter seals are verified for leak-free performance

5. Airflow and Performance Testing

• Inflow and downflow velocities are measured using calibrated instruments
• Smoke pattern testing confirms laminar airflow and containment effectiveness
• Blower motor function and airflow uniformity are verified across the cabinet

6. Safety System Verification

• Alarms for airflow disruption, sash height, and power loss are tested
• GFCI protection, lighting, and emergency shutoff systems are confirmed functional

7. Final Quality Control and Certification

• Performance testing is conducted to confirm NSF/ANSI 49 compliance (where applicable)
• Final visual inspection and cleaning performed prior to shipping
• Detailed service report and airflow test results provided with each unit

Trust the Experts at American Instrument Exchange

With over 50 years of experience in the lab equipment industry, American Instrument Exchange is a trusted name in refurbished biosafety cabinets. Our repair and refurbishment protocol ensures each cabinet provides dependable protection for personnel, products, and the environment—delivering maximum safety at a fraction of the cost of new.

Warranty Information

All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full.  American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,

Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”

Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.

Return & Cancellation Policy

American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted. 

Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.

Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.

Ongoing and Extended Support Options

American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.

For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.

For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.

Please contact our team at info@americaninstrument.com for more details.

FAQ

Does the equipment come with a warranty?

Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.

How do you test and recondition the equipment?

Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.

How do products ship from American Instrument Exchange?

We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.

Return and order cancellation policy

American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.

Are discounts available for educational or non-profit institutions, or for bulk purchases?

Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.

How does your price matching policy work?

We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.

Can I see the equipment in person before committing to a purchase?

Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.

1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.

Can I ship products that I purchased elsewhere to American Instrument for repair?

Yes – please see our repair services page for more information.