The Thermo Scientific Heraguard ECO 1.2 is a 4-foot horizontal laminar flow clean bench designed to provide an ISO Class 5 work environment for nonhazardous samples, products, and materials requiring protection from airborne particulate contamination. With HEPA-filtered horizontal airflow, a 48-inch-wide interior workspace, stainless-steel work surface, UV light, and energy-efficient DC motor technology, the Heraguard ECO 1.2 combines contamination control with a compact footprint suitable for laboratories where space is limited.
This particular Thermo Heraguard ECO 1.2 includes a supporting stand and UV light. Available used and refurbished from American Instrument Exchange, the clean bench is inspected and tested before shipment and includes a 90-day warranty.
Key Features
4-foot horizontal laminar flow clean bench
Provides an ISO Class 5 work environment
HEPA-filtered horizontal laminar airflow
48-inch-wide interior workspace
Stainless-steel work surface
UV light included
Supporting stand included
Energy-efficient DC motor technology
Standard airflow velocity of approximately 89 ft/min
Reduced airflow mode of approximately 45 ft/min
Quiet operation at less than 55 dBA
Tempered safety glass side panels
66 lb work surface load capacity
120 V electrical configuration
Refurbished and tested by American Instrument Exchange
90-day warranty included from American Instrument Exchange
Overview
The Thermo Scientific Heraguard ECO 1.2 creates a clean, particulate-controlled workspace by directing HEPA-filtered air horizontally through the work area. This unidirectional airflow continually sweeps airborne particles away from samples and materials, helping protect contamination-sensitive work during laboratory and production procedures.
The ECO 1.2 is the nominal 4-foot configuration in Thermo Scientific's Heraguard ECO family. Its interior measures approximately 48 inches wide by 23 inches deep by 25.4 inches high, providing ample room for sample preparation, culture vessels, trays, instruments, components, and other materials while requiring substantially less laboratory space than a 6-foot clean bench.
This particular unit features a stainless-steel work surface that provides a durable, easy-to-clean area for routine laboratory work. A UV light is also installed within the workspace for laboratories that incorporate ultraviolet exposure into established surface-treatment procedures. UV exposure should be treated as a supplemental measure rather than a substitute for routine cleaning and appropriate laboratory decontamination protocols.
The Heraguard ECO platform also uses DC motor technology designed to reduce energy consumption and heat output compared with traditional AC motor clean benches. Quiet operation further supports comfortable use in laboratories where clean benches may operate for extended periods.
Common Applications
The Thermo Heraguard ECO 1.2 is intended for nonhazardous procedures where protecting samples or products from airborne particulate contamination is the primary objective. Typical applications include sterile media preparation, plant tissue culture, nonhazardous sample preparation, appropriate pharmaceutical preparation procedures, medical device assembly, electronics assembly and inspection, optical component handling, and other contamination-sensitive work.
Its four-foot width offers a useful balance between working area and overall footprint. Laboratories can maintain a substantial clean workspace without dedicating the floor space required for a larger 5-foot, 6-foot, or 8-foot clean bench.
Because horizontal airflow ultimately moves through the work area toward the operator, the Heraguard ECO 1.2 should only be used with materials that do not require personnel or environmental containment.
Ideal Laboratory Environments
The Thermo Scientific Heraguard ECO 1.2 is well suited for biotechnology laboratories, pharmaceutical facilities, medical device manufacturers, electronics facilities, cleanroom environments, university research laboratories, hospital laboratories, quality-control departments, and industrial production environments.
Its 4-foot footprint makes it particularly attractive for laboratories where available space is limited but a full-size ISO Class 5 clean workspace is still required. The included supporting stand also provides a dedicated installation platform without requiring the laboratory to supply a separate bench or support structure.
Key Specifications
Specification
Thermo Scientific Heraguard ECO 1.2
Equipment Type
Horizontal laminar flow clean bench
Catalog Number
51029692
Nominal Width
4 ft
Airflow
Horizontal laminar flow
Cleanliness Classification
ISO Class 5
Filtration
HEPA
Standard Airflow Velocity
Approx. 89 ft/min
Reduced Airflow Velocity
Approx. 45 ft/min
Exterior Dimensions
51.2"W × 31.9"D × 46.1"H
Interior Dimensions
48.0"W × 23.0"D × 25.4"H
Work Surface
Stainless steel
UV Light
Included
Stand
Included
Noise Level
<55 dBA
Illumination
Approx. 93 fc (>1,000 lux)
Work Surface Capacity
66 lb
Electrical Requirements
120 V, 50/60 Hz, 7.6 A
Net Weight
Approx. 275 lb
Manufacturer
Thermo Scientific
Model
Heraguard ECO 1.2
Refurbishment & Testing
Used laminar flow clean benches should be thoroughly evaluated before being returned to laboratory service. American Instrument Exchange technicians test the Thermo Heraguard ECO 1.2 to verify proper operation of the controls and blower motor and evaluate the HEPA filter for suitability in laboratory conditions.
AIE's testing procedure incorporates the elements used in clean bench certification with the goal of preparing the unit for successful final testing following delivery and installation. The stainless-steel work surface, lighting, UV system, controls, cabinet, and supporting stand are also inspected as part of the refurbishment process.
The clean bench is thoroughly cleaned before shipment. Because cosmetic condition can vary among refurbished equipment, customers can request photographs of the specific unit included with their order after testing and cleaning have been completed.
This refurbished Thermo Scientific Heraguard ECO 1.2 includes a 90-day warranty from American Instrument Exchange.
Certification Readiness & Service
Proper airflow velocity and HEPA filter integrity are essential to maintaining the ISO Class 5 environment expected from a laminar flow clean bench. After transportation and installation, the Heraguard ECO 1.2 should be evaluated according to applicable laboratory procedures before being placed into critical service.
American Instrument Exchange works with AIE Laboratory Services to provide field support for clean benches and other laboratory airflow equipment throughout Greater Boston and New England. Services can include airflow testing, HEPA filter evaluation and replacement, troubleshooting, preventative maintenance, and related laboratory equipment service.
Final testing following relocation is especially valuable because transportation, installation conditions, room airflow, and filter condition can influence clean bench performance.
Shipping & Installation
The Thermo Scientific Heraguard ECO 1.2 clean bench itself measures approximately 51.2 inches wide by 31.9 inches deep by 46.1 inches high and weighs approximately 275 pounds.
A supporting stand is included with this particular unit, eliminating the need for the customer to provide a separate laboratory bench or supporting structure. Laboratories should nevertheless confirm the overall assembled height and footprint before selecting the final installation location.
Doorways, corridors, elevators, loading areas, and access to the final laboratory location should also be evaluated before delivery. Adequate clearance around the clean bench should be maintained according to manufacturer recommendations to avoid interfering with equipment operation or airflow.
American Instrument Exchange can assist with freight coordination and provide additional dimensional and configuration information for planning delivery and installation.
Related Equipment
Laboratories considering the Thermo Scientific Heraguard ECO 1.2 can explore additional clean benches and laminar flow hoods available from American Instrument Exchange, including larger Heraguard ECO models for laboratories requiring additional working width.
For applications involving biological hazards or other materials requiring personnel and environmental containment, AIE also carries refurbished biosafety cabinets from Thermo Scientific, Baker, Labconco, Nuaire, and other major manufacturers.
The Thermo Scientific Heraguard ECO 1.2 is a horizontal laminar flow clean bench, not a biosafety cabinet. Its primary purpose is product protection. HEPA-filtered air moves horizontally through the work area and ultimately toward the operator.
This airflow configuration provides a highly controlled environment for nonhazardous samples but does not provide the personnel and environmental containment associated with a Class II biosafety cabinet.
The Heraguard ECO 1.2 therefore should not be used with infectious agents, biohazardous samples, toxins, radionuclides, hazardous chemicals, or other substances requiring operator protection or containment.
Laboratories working with biological hazards should instead select an appropriate Class II biosafety cabinet. For nonhazardous procedures where sample cleanliness and particulate control are the primary objectives, a clean bench or laminar flow hood may be the appropriate choice.
The Heraguard ECO 1.2 is a nominal 4-foot clean bench. Its interior work area measures approximately 48 inches wide, while the clean bench itself measures approximately 51.2 inches wide.
Does this Thermo Heraguard ECO 1.2 include a stand?
Yes. This particular refurbished Heraguard ECO 1.2 offered by American Instrument Exchange includes a supporting stand.
Does this Heraguard ECO 1.2 have a UV light?
Yes. This unit is equipped with a UV light installed within the workspace. UV exposure should be incorporated into an appropriate laboratory protocol and should not replace routine cleaning or other established contamination-control procedures.
What level of cleanliness does the Heraguard ECO 1.2 provide?
The Heraguard ECO 1.2 is designed to provide ISO Class 5 conditions within the work area using HEPA-filtered horizontal laminar airflow.
What is the airflow velocity of the Heraguard ECO 1.2?
Thermo Scientific specifies approximately 89 ft/min at the standard airflow setting and approximately 45 ft/min at the reduced airflow setting.
What is the difference between the Heraguard ECO 1.2 and ECO 1.8?
The primary difference is working width. The ECO 1.2 is a nominal 4-foot clean bench with approximately 48 inches of interior width, while the ECO 1.8 is a nominal 6-foot model with approximately 71.6 inches of interior width. The ECO 1.2 can therefore be a better choice where laboratory space is limited or the additional workspace of a six-foot clean bench is unnecessary.
Is the Heraguard ECO 1.2 a biosafety cabinet?
No. The Heraguard ECO 1.2 is a horizontal laminar flow clean bench designed for product protection. It does not provide the personnel and environmental containment associated with a Class II biosafety cabinet.
Can the Heraguard ECO 1.2 be used for biohazardous materials?
No. Because filtered air travels horizontally through the workspace toward the operator, the Heraguard ECO should not be used with biohazardous or otherwise hazardous materials requiring containment.
Does American Instrument Exchange test refurbished Heraguard ECO clean benches?
Yes. AIE technicians test the clean bench's controls and blower operation and evaluate the HEPA filter for suitability in laboratory conditions. The unit is also cleaned and inspected before shipment.
Does the Thermo Heraguard ECO 1.2 include a warranty?
Yes. This refurbished Thermo Scientific Heraguard ECO 1.2 includes a 90-day warranty from American Instrument Exchange.
CLICK HEREto see the Thermo HERAgard ECO 1.2 4' clean bench on our YouTube channel
Testing Procedures for Used and Refurbished Laboratory Equipment
Ensure Accuracy, Safety, and Dependable Performance Across Applications
At American Instrument Exchange, all used and refurbished laboratory equipment undergoes a rigorous, multi-point testing protocol to ensure optimal performance, operational safety, and long-term reliability. Whether the equipment is destined for research, diagnostics, quality control, or production environments, our thorough inspection and testing process is designed to meet the highest standards of laboratory excellence.
Why Testing Used Lab Equipment Is Essential
Before any refurbished laboratory equipment is returned to service, it must be carefully tested to verify:
• Functional integrity and operational performance
• Setpoint accuracy and repeatability (where applicable)
• User interface responsiveness and control features
Proper testing reduces the risk of equipment failure, measurement inaccuracies, or user hazards—helping to ensure consistent results in clinical, academic, biotech, and industrial labs.
Our standardized lab equipment testing procedures are tailored to each equipment type, ensuring every unit meets manufacturer specifications and industry benchmarks.
Key Testing Procedures for Refurbished and Used Laboratory Equipment
1. Initial Visual Inspection
• Examine equipment housing for signs of wear, corrosion, or damage
• Check ports, power cords, and exterior components for tampering or deterioration
• Verify that internal and external parts (racks, shelves, connectors, accessories) are present and undamaged
2. Functional Startup and Operational Testing
• Power on the equipment and verify startup diagnostics
• Confirm functionality of displays, buttons, switches, and control panels
• Run basic functions to confirm proper response and behavior under standard operating conditions
3. Testing and Performance Verification
• Test internal sensors or control systems using industry-standard tools
• Perform operational tests to validate accuracy and consistency
• Verify key performance specifications such as temperature control, timing, speed, or measurement outputs, depending on equipment type
4. Mechanical and Electrical System Testing
• Evaluate motors, pumps, fans, or other moving parts for smooth operation
• Inspect and test wiring, relays, fuses, and circuit boards for safety and reliability
• Test power delivery and grounding compliance
5. Safety and Compliance Checks
• Ensure equipment is grounded and insulated to meet laboratory safety standards
• Test alarms, interlocks, emergency stops, or safety shutdown systems if applicable
6. Final Quality Assurance and Documentation
• Perform extended runtime testing
• Document operational logs, testing results, and any repairs or adjustments made
• Complete a final inspection, thorough cleaning, and packaging for delivery
Trusted Quality from American Instrument Exchange
With over 50 years of experience in laboratory equipment refurbishment, American Instrument Exchange is committed to delivering certified, lab-ready instruments backed by expert testing. Our testing protocols ensure that each piece of equipment—regardless of type—is safe, accurate, and dependable from day one.
Whether you're equipping a startup lab or expanding a high-throughput facility, you can count on our refurbished laboratory equipment to perform with precision and reliability.
Refurbishment Protocol for Used Laboratory Equipment from American Instrument Exchange
At American Instrument Exchange, every piece of used laboratory equipment we offer undergoes a multi-step refurbishment process. Whether it's an analytical balance, centrifuge, freezer, oven, or any other essential lab instrument, our goal is to restore each unit to peak performance—ensuring accuracy, safety, and long-term reliability in scientific, clinical, industrial, and academic environments.
Why Choose Refurbished Lab Equipment from American Instrument Exchange?
• Thoroughly tested for performance, precision, and safety
• Backed by a warranty
• A cost-effective alternative to new equipment
• Environmentally sustainable through equipment reuse and waste reduction
• Serviced by expert technicians with decades of laboratory equipment experience
Step-by-Step Refurbishment Protocol
Every instrument and system refurbished at American Instrument Exchange follows a detailed, industry-aligned process:
1. Initial Intake & Inspection
• Complete visual and structural inspection for cosmetic damage, wear, or corrosion
• Mechanical assessment of hinges, seals, fasteners, motors, and moving parts
• Missing components and damaged items are documented for repair or replacement
2. Cleaning and Decontamination
• Full internal and external cleaning using non-abrasive, lab-safe solutions
• Removal of biological, chemical, or particulate contamination
• Disassembly and cleaning of removable parts such as trays, shelves, and filters
3. Mechanical and Electrical Repair
• Replacement or repair of worn or broken mechanical parts
• Evaluation and servicing of control panels, sensors, switches, and displays
• Testing and repair of electrical wiring, fuses, circuit boards, and power supplies
4. Functional System Testing
• Assessment of all major functions specific to the equipment type (e.g., speed, temperature, force, weight, timing)
• Operation of control interfaces, programming menus, and digital displays
• Verification of stabilization time, responsiveness, and user input reliability
5. Testing and Performance Verification
• Testing of internal sensors, controllers, and measurement systems using certified tools
• Multi-point testing to ensure repeatability, accuracy, and performance consistency
• Confirmation of user-defined setpoints, timing sequences, or programmable cycles
6. Safety and Compliance Checks
• Testing of safety interlocks, alarms, and over-limit protection systems (as applicable)
• Electrical safety inspections, including grounding and insulation verification
7. Final Quality Assurance and Documentation
• Full operational testing under simulated lab conditions
• Completion of performance benchmarks, testing results, and repair logs
• Final cleaning and visual inspection
Trust the Experts at American Instrument Exchange
With over 50 years of experience in the laboratory equipment industry, American Instrument Exchange is a trusted leader in high-quality refurbished lab instruments. Our refurbishment protocols ensure that every piece of equipment we sell is lab-ready—offering the precision, performance, and durability your team can count on.
Whether you’re outfitting a new lab or expanding an existing operation, choose American Instrument Exchange for tested, warrantied, and cost-effective laboratory equipment.
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.
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.
