Nuaire ALLERGARD NU620-400 ATS

Brand : Nuaire

Product Code : SKU 0878AA BIO CAB

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Nuaire AllerGard NU-620-400 Animal Transfer Station – Refurbished

The Nuaire AllerGard NU-620-400 Animal Transfer Station is designed to provide personnel, animal, and environmental protection for laboratory animal handling procedures requiring contamination-controlled airflow and ergonomic open-access operation. Commonly used for cage changing, animal transfer procedures, bedding changes, vivarium workflows, pharmaceutical research, and biotechnology applications, this refurbished Nuaire animal transfer station offers reliable containment performance for laboratories and animal research facilities requiring HEPA-filtered airflow environments.

The NU-620-400 is part of Nuaire’s AllerGard animal transfer station platform and was specifically engineered for vivarium workflows involving rodent handling and cage transfer procedures. Unlike traditional biosafety cabinets designed primarily for microbiology or tissue culture applications, the AllerGard platform emphasizes allergen reduction, ergonomic cage-changing workflows, operator comfort, and efficient dual-sided access for laboratory animal handling operations. Nuaire AllerGard systems have been widely used throughout pharmaceutical vivariums, biotechnology animal facilities, academic research institutions, and government animal research laboratories because of their advanced airflow systems, ergonomic operation, and durable containment design.

At American Instrument Exchange, each animal transfer station is inspected and tested by our technicians prior to shipment. Unless otherwise specified, new HEPA filters are installed at our facility before delivery. Laboratories and vivarium facilities outfitting containment-focused workflows may also browse additional refurbished biosafety cabinets, laboratory incubators, centrifuges, laboratory refrigerators, and freezers available through American Instrument Exchange.

Nuaire AllerGard NU-620-400 Key Features

Nuaire AllerGard NU-620-400 Animal Transfer Station
4-foot workspace configuration
Designed for vivarium and cage-changing workflows
Dual-sided open-access workstation design
HEPA-filtered push-pull airflow system
Personnel, animal, and environmental protection
Electric hydraulic height-adjustment system
Stainless steel plenum and work surface
Cage-deep well configuration
14-inch work access openings
LED lighting system
Includes new HEPA filters
90-day warranty included from American Instrument Exchange
Refurbished and tested by American Instrument Exchange

Nuaire AllerGard NU-620-400 Overview

The Nuaire AllerGard NU-620-400 Animal Transfer Station is a 4-foot containment workstation engineered for laboratory environments requiring contamination-controlled airflow during cage changing and laboratory animal handling procedures. Nuaire developed the AllerGard platform specifically for vivarium workflows where operator protection, environmental protection, and animal protection must be maintained during rodent handling and cage transfer operations.

Unlike conventional biosafety cabinets with enclosed front sash openings, the NU-620-400 uses an ergonomic dual-sided open-access workstation configuration intended to simplify cage changing, bedding transfer, animal handling, and vivarium workflows while maintaining directional HEPA-filtered airflow containment. The dual-sided access design may improve operator efficiency and workflow flexibility during repetitive high-volume cage-changing procedures in space-limited vivarium environments.

The NU-620-400 operates using Nuaire’s “push-pull” airflow system, which uses separate supply and exhaust airflow modules to create a clean work zone while helping contain allergens generated during animal handling procedures. HEPA-filtered supply airflow provides ISO Class 5 cleanliness within the work area, while the exhaust airflow system helps reduce allergen escape into surrounding laboratory environments.

This specific NU-620-400 configuration includes cage-deep wells designed to lower stacked cages and improve technician accessibility during transfer procedures. The station also features an electric hydraulic lift system with approximately 12 inches of work-surface adjustment range, allowing operators to raise or lower the workstation height for improved ergonomics during extended vivarium procedures.

Additional features commonly associated with the NU-620 platform may include stainless steel plenums and work surfaces, hinged polycarbonate viewing windows, LED lighting, airflow monitoring systems, side-mounted push/pull bars, omnidirectional casters, and low-noise blower systems depending on the specific configuration of the unit.

Laboratories and vivarium facilities outfitting complete containment workflows may also be interested in refurbished CO2 incubators, ultra-low freezers, autoclaves, and water baths available through American Instrument Exchange.

Nuaire AllerGard NU-620-400 Common Applications

The Nuaire AllerGard NU-620-400 Animal Transfer Station is commonly used for vivarium workflows requiring contamination-controlled airflow during laboratory animal handling procedures. Typical applications may include rodent cage changing, animal transfer procedures, bedding changes, pharmaceutical animal research, biotechnology animal studies, allergen-control workflows, and laboratory animal handling applications.

This animal transfer station may also be appropriate for pharmaceutical research facilities, vivariums, biotechnology laboratories, academic animal research programs, government research institutions, and laboratory environments requiring HEPA-filtered airflow during animal transfer operations.

Nuaire AllerGard NU-620-400 Ideal Laboratory Environments

This animal transfer station may be suitable for vivariums, pharmaceutical research facilities, biotechnology laboratories, academic research institutions, cleanroom animal facilities, government laboratories, and containment-focused animal research environments.

Its ergonomic dual-sided access configuration, cage-deep wells, and adjustable-height operation may make it especially appropriate for facilities performing repetitive cage-changing procedures requiring efficient workflow design and allergen reduction.

Nuaire AllerGard NU-620-400 Key Specifications

Specification	Details
Manufacturer	Nuaire
Model	AllerGard NU-620-400
Configuration	Animal Transfer Station
Nominal Width	4 ft
Airflow Design	HEPA-filtered push-pull airflow
Protection Type	Personnel, animal, and environmental protection
Workstation Design	Dual-sided open-access workstation
Work Access Opening	14 in
Height Adjustment	Electric hydraulic lift system
Work Surface	Stainless steel
Filtration	HEPA supply and exhaust filtration
Lighting	LED lighting
Exterior Dimensions	Approx. 48” W × 30.6” D × 80.5”–92.5” H
Work Area Dimensions	Approx. 42.6” W × 28.3” D × 25.5” H
Downflow Velocity	Approx. 60 FPM
Inflow Velocity	Approx. 25 FPM
Weight	Approx. 475 lbs
Electrical Requirements	115V, 60Hz
Included Accessories	Stand and new HEPA filters
Warranty	90-day warranty
Condition	Refurbished

Specifications compiled from Nuaire manufacturer literature, distributor technical references, and American Instrument Exchange product information.

Nuaire AllerGard NU-620-400 Refurbishment and Testing

American Instrument Exchange has extensive experience refurbishing used biosafety cabinets, animal transfer stations, and laboratory containment equipment for research and pharmaceutical environments.

Each animal transfer station is inspected by our technicians to verify proper blower operation, airflow performance, hydraulic lift operation, lighting operation, cabinet integrity, control functionality, and overall system condition prior to shipment. Unless otherwise specified, new HEPA filters are installed at our facility before delivery.

Testing procedures include major functional and airflow verification elements associated with animal transfer station performance to help support operational readiness upon installation at your facility.

Nuaire AllerGard NU-620-400 Certification Readiness

Animal transfer stations should be evaluated and certified by qualified field technicians after installation and before laboratory use when required by institutional protocols or vivarium standards.

American Instrument Exchange performs functional testing prior to shipment to support operational readiness upon arrival. Buyers should confirm facility compatibility, airflow requirements, electrical requirements, and certification standards prior to installation.

Certification services are available throughout New England through AIE Laboratory Services, which provides biosafety cabinet certification, preventative maintenance, testing, repair, and field service support for laboratory containment equipment.

Operational requirements may vary depending on vivarium protocols, institutional standards, and laboratory animal handling procedures.

Nuaire AllerGard NU-620-400 Shipping and Installation Considerations

Animal transfer stations are oversized laboratory containment systems that may require special handling during transportation, delivery, and installation. Buyers should confirm facility access dimensions, doorway clearances, elevator compatibility, electrical compatibility, and final equipment placement before shipment.

Depending on the installation environment, liftgate delivery, inside delivery services, rigging assistance, or coordinated facility access may be recommended.

The ergonomic dual-sided workstation configuration and electric lift system may require additional planning for final positioning within cage-changing rooms or vivarium workflows.

Nuaire AllerGard NU-620-400 Frequently Asked Questions

What makes the NU-620-400 different from a standard biosafety cabinet?

The NU-620-400 is specifically designed for vivarium and cage-changing workflows rather than microbiology or tissue culture procedures. Its dual-sided open-access configuration allows easier cage transfer operations while maintaining HEPA-filtered containment airflow.

What is the benefit of the “push-pull” airflow system?

Nuaire’s push-pull airflow system uses independent supply and exhaust airflow modules to maintain clean airflow within the work zone while simultaneously helping contain allergens generated during cage-changing procedures.

Why are cage-deep wells useful during animal transfer procedures?

The deep-well configuration lowers the height of stacked cages, making cages easier for technicians to access during transfer procedures and reducing repetitive reaching or lifting during cage-changing workflows.

Does the NU-620-400 include an adjustable-height workstation?

Yes. The NU-620-400 includes an electric hydraulic lift system that provides approximately 12 inches of work-surface height adjustment to improve ergonomics for different operators.

Why do many vivariums prefer dual-sided transfer stations?

Dual-sided transfer stations may improve workflow efficiency in space-limited vivariums because operators can access cages and supplies from multiple sides during animal handling procedures.

Does American Instrument Exchange replace HEPA filters before shipment?

Yes. Unless otherwise specified, American Instrument Exchange installs new HEPA filters before shipment. Transfer stations are inspected and tested by our technicians prior to delivery.

What testing does American Instrument Exchange perform during refurbishment?

American Instrument Exchange technicians inspect airflow systems, blower operation, hydraulic lift functionality, cabinet controls, lighting systems, and overall workstation condition prior to shipment.

Does the NU-620-400 include a warranty?

Yes. A 90-day warranty from American Instrument Exchange is included.

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.