The Flow Sciences FS11300 is a three-foot laboratory safety containment enclosure designed to protect personnel during procedures involving hazardous powders, airborne particulates, and potentially harmful aerosols. Available used and refurbished from American Instrument Exchange, this specialized enclosure combines recirculating airflow, an integrated high-efficiency impeller, and a dual HEPA filtration system to provide localized containment for pharmaceutical research, analytical chemistry, powder handling, and other laboratory applications.
A distinguishing feature of the FS11300 is its bag-in/bag-out HEPA filter replacement system. This design allows trained personnel to remove and replace contaminated filters while reducing the potential for exposure to collected hazardous materials. An additional HEPA filter provides secondary containment during the filter-change process.
Unlike a conventional ducted chemical fume hood, the Flow Sciences FS11300 is configured to recirculate HEPA-filtered air rather than exhaust it through the building ventilation system. This makes it a practical option for appropriate particulate-handling applications where installing external ductwork may be difficult or expensive.
Key Features
Used and refurbished Flow Sciences FS11300 safety containment enclosure
Manufacturer-listed particulate filtration efficiency of 99.99% at 0.3 microns
Integrated high-speed, energy-efficient impeller
Recirculating airflow configuration
Bag-in/bag-out HEPA filter replacement system
Secondary HEPA filter for additional containment during filter servicing
Easy-Lock front access system for tool-free filter access
Designed for containment of hazardous airborne particulates
Suitable for pharmaceutical powder handling and laboratory sample preparation
Self-contained airflow system for appropriate recirculating applications
Refurbished and tested by American Instrument Exchange
90-day warranty included
Overview of the Flow Sciences FS11300
The Flow Sciences FS11300 provides a dedicated containment workspace for laboratories performing procedures that may generate airborne powders or particulates.
Activities such as weighing powdered reagents, transferring dry chemicals, preparing pharmaceutical ingredients, and handling fine particulate samples can create airborne contamination that presents an inhalation hazard to laboratory personnel.
The FS11300 addresses these concerns by drawing air into the enclosure and passing it through a dual HEPA filtration system before returning filtered air to the surrounding laboratory.
Its compact three-foot configuration provides a contained workspace without the footprint of a full-size chemical fume hood or larger containment system.
The enclosure is particularly attractive for laboratories that need localized particulate containment and want to avoid installing a dedicated building exhaust connection.
Dual HEPA Filtration for Particulate Containment
The Flow Sciences FS11300 incorporates a dual HEPA filtration arrangement intended to capture airborne particles generated during laboratory procedures.
HEPA filtration is commonly used in laboratory containment equipment because it provides high-efficiency removal of fine airborne particles. The FS11300 listing specifies a particulate removal efficiency of 99.99% at 0.3 microns.
As air passes through the enclosure's filtration system, particulate contaminants are captured by the filter media rather than being released directly into the surrounding laboratory.
The dual-filter design also provides an additional containment barrier during filter replacement and maintenance procedures.
This filtration arrangement is particularly useful for applications involving powders or particulate materials that require careful handling and controlled disposal.
HEPA filtration does not remove most chemical vapors or gases. The FS11300 should therefore not be treated as a general-purpose ductless chemical fume hood for volatile solvents or other vapor-generating procedures.
Bag-In/Bag-Out HEPA Filter Replacement
One of the most important features of the FS11300 is its bag-in/bag-out filter replacement system.
When an enclosure is used to handle hazardous powders, contaminants can accumulate within the HEPA filter. Removing a contaminated filter without appropriate containment measures may expose maintenance personnel to these collected materials.
The FS11300's bag-in/bag-out arrangement is designed to facilitate controlled filter removal and disposal.
During servicing, the contaminated filter can be handled within a protective bagging system, helping reduce the potential for airborne contamination and direct contact with hazardous particles.
This feature is especially valuable for pharmaceutical and chemical laboratories where filter contamination may involve potent compounds or materials requiring special handling precautions.
Filter replacement should be performed by appropriately trained personnel following the manufacturer's procedures and the laboratory's established safety protocols.
Easy-Lock Filter Access System
The Flow Sciences FS11300 includes an Easy-Lock front access system designed to simplify access to the filtration assembly.
According to the AIE listing, this system secures the filter without requiring tools for the locking mechanism.
The combination of accessible filter hardware and the bag-in/bag-out replacement design can help simplify routine maintenance while supporting controlled handling of contaminated filtration media.
An additional HEPA filter helps prevent contaminants from migrating downstream during the replacement process.
These features distinguish the FS11300 from more basic laboratory enclosures that may require extensive disassembly or expose maintenance personnel to collected particulate contamination during filter changes.
Integrated Impeller and Recirculating Airflow
The FS11300 incorporates a high-speed, energy-efficient impeller that drives airflow through the enclosure and its HEPA filtration system.
The integrated impeller eliminates the need for a separate building exhaust blower in the enclosure's intended recirculating configuration.
During operation, air is drawn inward through the enclosure opening, helping carry airborne particulates away from the operator and toward the filtration system.
After passing through the HEPA filters, air is returned to the laboratory.
This arrangement can simplify installation and reduce the building modifications associated with conventional ducted containment equipment.
However, recirculating operation must be appropriate for the specific materials being handled. Laboratories should evaluate the hazards, potential airborne concentrations, filter performance, and applicable occupational exposure requirements before selecting a recirculating containment system.
Common Applications
The Flow Sciences FS11300 is designed for laboratory procedures involving airborne particulates and powders where personnel containment is required.
Potential applications include pharmaceutical ingredient weighing, powdered reagent preparation, analytical sample handling, dry chemical transfers, toxicology research, environmental sample preparation, laboratory quality control, and selected research procedures involving hazardous particulate materials.
The enclosure may also be suitable for repetitive powder-handling operations where the use of an open laboratory bench would create unnecessary exposure risks.
For work involving highly potent compounds, cytotoxic materials, or other substances with stringent occupational exposure limits, the laboratory should verify that the complete enclosure configuration has demonstrated the containment performance required for the specific application.
Ideal Laboratory Environments
The FS11300 is suitable for consideration in pharmaceutical research and development laboratories, analytical chemistry facilities, biotechnology laboratories, toxicology research facilities, environmental testing laboratories, industrial quality control departments, and university research laboratories.
Its three-foot width makes it attractive for laboratories requiring a dedicated containment workstation without allocating the space necessary for a larger chemical fume hood.
The bag-in/bag-out filtration system may be especially valuable for facilities that handle powders requiring controlled filter disposal and careful maintenance procedures.
Key Specifications
Specification
Details
Manufacturer
Flow Sciences
Model
FS11300
AIE Product Code
2904N HOOD
Product Type
Safety Containment Enclosure
Nominal Width
3 feet
Airflow Configuration
Recirculating
Air-Moving System
Integrated high-speed impeller
Filtration
Dual HEPA
Listed Filtration Efficiency
99.99% at 0.3 microns
Filter Replacement
Bag-in/bag-out
Filter Access
Easy-Lock front access
Secondary Filtration
Additional HEPA filter
Primary Application
Hazardous particulate and powder containment
External Exhaust Ductwork
Not required for appropriate recirculating applications
Separate Exhaust Blower
Not required for standard configuration
Exterior Dimensions
Confirm for FS11300
Interior Dimensions
Confirm for FS11300
Face Velocity
Verify during installation and commissioning
Electrical Requirements
Confirm from equipment nameplate
Work Surface
Verify installed configuration
Filter Condition
Confirm during pre-installation inspection and testing
Condition
Used and refurbished
Warranty
90 days
Containment Performance and Airflow Verification
Effective personnel protection depends on more than the presence of HEPA filters.
The enclosure must maintain appropriate inward airflow during laboratory procedures, and the installed filtration system must operate correctly.
Flow Sciences provides certification guidance for its containment enclosure products, including airflow measurements and performance evaluation. However, airflow settings and acceptance criteria can vary according to enclosure design and intended application.
For the FS11300, the appropriate operating airflow should be established using model-specific documentation and the laboratory's safety requirements rather than assuming that specifications for newer Flow Sciences enclosure series apply directly.
Before the unit is placed into hazardous service, laboratories should arrange appropriate airflow verification, HEPA filter integrity testing, and any required containment testing.
Choosing a Recirculating Containment Enclosure vs. a Vented Balance Enclosure
The FS11300 differs from a conventional vented balance enclosure in its integrated air-moving and filtration components.
A vented balance enclosure generally requires connection to an external exhaust source or a separately selected filtration system. The Flow Sciences FS11300 incorporates an impeller and dual HEPA filtration within its containment configuration.
For appropriate particulate applications, this can simplify installation and reduce the need for additional ventilation equipment.
However, a vented enclosure connected to building exhaust may be preferable when handling materials that cannot be adequately controlled through HEPA recirculation.
Laboratories performing highly sensitive weighing procedures should also evaluate the enclosure's airflow characteristics and the vibration sensitivity of their analytical balances.
Flow Sciences FS11300 vs. a Chemical Fume Hood
Although both containment enclosures and chemical fume hoods are designed to help protect laboratory personnel, their applications differ.
The Flow Sciences FS11300 is primarily intended for airborne particulate containment using HEPA filtration.
A conventional chemical fume hood is designed to capture and exhaust hazardous chemical vapors, fumes, and gases through an appropriate ventilation system.
Because HEPA filters do not remove most chemical vapors, the FS11300 should not be substituted for a chemical fume hood when handling volatile solvents or other vapor-producing chemicals.
The appropriate equipment should be selected based on the physical and chemical hazards associated with the laboratory procedure.
Refurbishment and Testing
This Flow Sciences FS11300 is used and reconditioned by American Instrument Exchange.
Our technicians inspect the enclosure's structural condition, integrated impeller, filter housing, access components, and other applicable operating features. The unit is cleaned and prepared for shipment as part of the refurbishment process.
Because the enclosure incorporates specialized dual HEPA filtration and a bag-in/bag-out filter replacement system, the condition of the installed filters and the integrity of the filtration assembly are important considerations before use.
Final airflow verification, filter integrity testing, and any required containment qualification should be completed after installation.
Shipping and Installation
The compact FS11300 can provide a practical containment solution for laboratories that do not have dedicated exhaust ductwork available.
Before installation, the laboratory should verify the enclosure's exterior dimensions, electrical requirements, supporting work surface, and available service clearances.
The unit should be installed on a stable, level surface with adequate clearance for routine operation and filter servicing.
American Instrument Exchange can assist customers with equipment information, shipping arrangements, and questions about the enclosure's configuration before purchase.
Why Buy a Refurbished Flow Sciences Enclosure from American Instrument Exchange?
Purchasing a refurbished Flow Sciences safety containment enclosure can provide laboratories with a cost-effective alternative to new specialized powder-handling equipment.
The FS11300 combines a compact three-foot workspace with an integrated impeller, dual HEPA filtration, and a bag-in/bag-out filter replacement system, making it an attractive option for facilities seeking particulate containment without extensive building ventilation modifications.
This Flow Sciences FS11300 includes a 90-day warranty from American Instrument Exchange.
Frequently Asked Questions
What is the Flow Sciences FS11300 designed for?
The FS11300 is a three-foot laboratory containment enclosure designed for procedures involving airborne powders and particulates. It is particularly useful for pharmaceutical powder handling, analytical sample preparation, and other applications requiring localized personnel protection.
Does the Flow Sciences FS11300 include an integrated blower?
The FS11300 incorporates a high-speed, energy-efficient impeller as part of its recirculating airflow system. A separate building exhaust blower is not required for its standard recirculating configuration.
Does the FS11300 use HEPA filtration?
Yes. The FS11300 uses a dual HEPA filtration system with a listed particulate removal efficiency of 99.99% at 0.3 microns.
What is the purpose of the bag-in/bag-out filter system?
The bag-in/bag-out system is designed to help trained personnel remove and replace contaminated HEPA filters while reducing potential exposure to collected hazardous materials.
What is the Easy-Lock system?
The Easy-Lock system provides convenient front access to the filter assembly and allows the filter to be secured without tools for the locking mechanism.
Does the FS11300 require external ductwork?
Not for appropriate standard recirculating particulate applications. The enclosure incorporates an integrated impeller and returns HEPA-filtered air to the laboratory.
Can the FS11300 be used for pharmaceutical powder weighing?
Potentially, yes. The enclosure is designed for particulate containment and may be appropriate for powder weighing and transfer. The laboratory should verify balance compatibility and the required containment performance for the materials being handled.
Can this enclosure be used for chemical vapors?
No general chemical-vapor protection should be assumed. HEPA filtration captures particles but does not remove most chemical vapors or gases. Volatile solvent procedures generally require an appropriately designed chemical fume hood or other suitable ventilation system.
Is the FS11300 suitable for highly potent pharmaceutical compounds?
Suitability depends on the compound, quantities handled, occupational exposure limits, and verified containment performance. The presence of dual HEPA filtration and bag-in/bag-out servicing does not, by itself, establish suitability for every highly potent material.
Does the enclosure require certification after installation?
Appropriate airflow and HEPA filter integrity testing should be completed before hazardous use. Additional containment testing or certification may be necessary depending on the application and laboratory safety requirements.
Does this refurbished Flow Sciences FS11300 include a warranty?
Yes. The FS11300 includes a 90-day warranty from American Instrument Exchange.
Click Hereto see the Flow Sciences FS11300 enclosure on the American Instrument Exchange 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.
