AllerGard ESNU-621
Single Side Animal Transfer Station

Single-Sided Configuration | Dynamic Air Barrier | Improved Allergen Protection | Dynamic Air Barrier

The AllerGard NU-621 is a singled-side Animal Transfer Station (ATS) that offers improved allergen protection through a dynamic air barrier of 75 fpm (0.38 m/s) through the front of the cabinet. The HEPA filtered laminar downflow air of 60 fpm (0.30 m/s) provides animal protection within the work zone. In addition, HEPA filtered exhaust air provides environmental protection to the vivarium. Model NU-621 is available in three nominal widths to fit your available laboratory space or cage change workflow. A pre-filtration system extends supply and exhaust HEPA filter life. Constructed on a motorized based the NU-621 is perfect for multiple users. AllerGard NU-621 provides the perfect environment for medical veterinary directors and vivarium facility managers looking for an ergonomic solution to efficiently change mouse and rat cages in a clean environment while improving allergen protection.

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A Size to Meet Your Needs

The Singled Sided AllerGard NU-621 is available in three different nominal widths.



3-feet (0.9 m)


4-feet (1.2 m)


5-feet (1.5 m)

Quick Specs

Air Cleanliness (ISO 14644) ISO-Class-3
Control System AeroMax
Downflow fpm (m/s) 60 FPM (0.30 m/s)
Protection Product
Work Access Opening(s) 14 (356)
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NU-621 Animal Transfer Station dynamic air barrier of 75 fpm (0.38 m/s)

Improved Allergen Protection

Dynamic Air Barrier

The single-sided design of model NU-621 creates a dynamic air barrier of 75 fpm (0.38 m/s) at the opening of the cabinet. The result is a more powerful air barrier improving allergen protection and animal sterility.

Animal Transfer Station Single Pass Airflow

Minimize Work Zone Heat Build Up Redcuing Stress on Animals

Single Pass Airflow

The airflow pattern starts with the supply pre-filter located on top of the station, continues through the supply Impeller and through the supply HEPA filter providing 99.99% particle removal at 0.3 microns. The airflow moves in a uniform vertical pattern providing particulate-free air in the work zone. The down flow air is then pulled into the vacuum slots around the work surface, through the exhaust pre-filters, and the exhaust HEPA filter.

NU-621 Animal Transfer Station 14-inch (356 mm) Large Access Opening

Making Transfers Easy

Large Access Opening

A Large 14-inch (356 mm) Access Opening makes it easy to add and remove the largest cages while providing your arms an extended range of motion.

NU-621 Animal Transfer Station Spacious Work Zone

Spacious Work Zone

A Spacious Work Zone offers more room to work with cages and allows for the additional placement of work flow items such as feed, water bottles, and more.

NU-621 Animal Transfer Station Range of Heights

Sit or Stand at a Range of Heights

Model NU-621 provides the ability to Sit or Stand at a Range of Heights through an automatic lift system offering 12-inches (305 mm) adjustable height.

NU-621 Animal Transfer Station Improved Site Lines

Large Unobstructed View

A large 12 inch (305 mm) slanted view screen provides an unrestricted view of the work zone allowing the technician to adequately and safely do their job.

The NuAire© Advantage

NuAire® utilizes an independent network of sales and service professionals offering our customers a vast array of knowledge and relationships. Our inside sales and service teams are the pride of the industry; some of which have been with NuAire® since the beginning in 1971. We work hard and diligently to make you happy. That is our mission, and that is why we come to work every day. Purchase a NuAire® and become part of our family.


Backed by the Industry's Best

  • 3 Years Parts & Labor (United States and Canada)
  • Consult Local Distributor (Global)

Standard Features

  • 75 fpm (0.38 m/s) Inflow
  • 60 fpm (0.30 m/s) Downflow
  • 4-inch (102 mm) Casters
  • Pre-filtration System
  • 14-inch (356 mm) Access Opening
  • Hinged Polycarbonate View Screen
Air Cleanliness (ISO 14644) ISO-Class-3
Built-in Shelf for Stand-Up Option Option
Casters 4 (102), Lockable
Construction Painted Steel Main Cabinet, Stainless Steel Plenum & Work Surface, Polycarbonate View Screen
Control System AeroMax
Diffuser Metal
Downflow fpm (m/s) 60 FPM (0.30 m/s)
Electrical Configuration 115V60Hz, 230V5060Hz
Exhaust Filter 3-inch (76mm) 99.99% Efficiency on 0.3 microns
Exhaust Prefilter Polyurethane Foam 15PPI
Feeder Holder(s) N/A
Folding Shelf Dimensions (W x D) Option, 14-inch (355mm) x 30-inch (762mm)
Free Standing Cage Top Holder Accessory
Fumigation: per NIH/NSF Procedures Yes
Hand Sanitizer Dispenser Accessory
HEPA Filter Seal Type Neoprene, Spring-loaded
Inflow fpm (m/s) 75 (0.38
Lighting LED
Light Intensity fc (Lux) Inquire
Magnifying Glass in Window Option
Motorized Base Stand Included
Outlet(s) One, Right Sidewall
Plenum Type Inquire
Power Cord 15A
Power Cord Length Foot (Meter) 20 ft. (6.1 m) Cord Reel
Protection Product
Safety Certification UL, UL-C
Service Valves (3/8-inch NPT) N/A
Style Console
Supply Filter 3-inch (76mm) 99.99% Efficiency on 0.3 microns
Supply Prefilter Polyurethane Foam 15PPI
Viewing Window Inches (mm) Hinged
Work Access Opening(s) 14 (356)
Work Surface Stainless Steel

NuAire Accessories

Please keep in mind parts and accessories are product and size specific, contact your sales representative for any clarity to your size questions.
Brochure Lab Animal Equipment

NuAire Vivarium Products Brochure

Download the brochure
Flyer AllerGard Animal Transfer Station Product Flyer

AllerGard Animal Transfer Station Product Flyer

View the flyer

AllerGard NU-620 Series 5 Animal Transfer Station Manual

Read the manual

AllerGard NU-620E Series 6 Animal Transfer Station Manual

Read the manual

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How it works. NuAire sells through a network of knowledge representatives, some who have been selling and servicing NuAire since our inception in 1971. We’ll notify your local representative who will reach out to you. He/She can assist with product selection/configuration, training, installation guidance, support throughout the life of the product, or just provide you pricing in a quick manner. We have some of the best customers who are doing some groundbreaking work. We would love for you to join our family and experience the NuAire Advantage.

Why Your Colleagues Choose NuAire

Let me say that we have come to rely on Nuaire, as a strong partner to Vaccines & it is so because of our valued relationship with George Riley, who is always at our beck and call. God bless him (Keep him for Sure!!) & your Quality BioSafety Cabinets. Service is King & Quality is his side-kick!! So thank you! We look forward to a long and prosperous relationship. Keep up the good work & quality build.

Operations Manager at a Large Pharmaceutical Company

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