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Nuaire Blizzard NU-99728J -80°C Ultralow Freezer

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A versatile and affordable ultra-low freezer, the Blizzard™ range of vertical ultra-low freezers allows you to efficiently store a variety of samples by using energy-efficient HC refrigerants. Its sturdy stainless steel construction is paired with an insulating composite VIP and polyurethane insulation to protect your most precious lab samples. Multiple, polyurethane foam insulated interior doors allow easy access with minimal temperature loss to racks set on the adjustable shelves inside. Running parameters are clearly displayed on the front electronic control panel at all times and can be downloaded from this unit's USB port for long-term data logging.

Nuaire NU-99728J -80°C Ultralow Freezer

Est. Shipping Width Inches (mm) 44 (1118)
1 Minutes Door Open Recovery Time (25°C ambient running temp -75°C) in Minutes 45
2-inch Box Capacity 500
Est. Shipping Height Inches (mm) 84 (2137)
Est. Shipping Depth Inches (mm) 42 (1067)
Access Port Location Back Wall
Adjustable High/Low-Temperature Alarms True
Alarms Temperature, Power Failure, Probe Failure, Condenser, Ambient Temperature, Door Ajar, Low Battery, etc.
Ambient Temperature (°C) Ideal Ambient Temperature Range 18C to 25C
Auto Voltage Safeguard Included
Back Up Battery for Alarm Functions High/low temperature, power failure, door open, sensor failure, high ambient temperature, hot condenser and low battery alarms
Cabinet Thickness Inches (mm) 3.5 (90)
Casters All-direction caster with fixing stand
Compressor Capacity Watt 950
Compressor Type/Brand/Number Hermetic Reciprocating Type / SECOP / 2
Condenser Type Enhanced Micro-Channel & Forced-Air Cooled
Controller Sensor PT100
Controller Type Microprocessor Control, LED Display, USB Data Export
Cool Down Time (25°C ambient to -80°C) in Minutes 310
Data Output Features USB, RS-232/485
Defrost Method Manual
Door Thickness Inches (mm) 3.5 (90)
Electrical Configuration 115V60Hz, 220V60Hz, 230V50Hz
Evaporator Type Cold Wall With Enhanced Heat Transfer Treatment
Exterior Depth Inches (mm) 38.6 (980)
Exterior Depth with Door Open Inches (mm) 74.80 (1900)
Exterior Door Single Door
Exterior Door Seal Quadruple Seal on the Outside Door
Exterior Height Inches (mm) 78 (1980)
Exterior Material Color Coating Cold Plate Steel
Exterior Width Inches (mm) 41 (1041)
Fan Brand EBM
Footprint Depth inches (mm) 38.6 (980)
Footprint Width inches (mm) 41 (1041)
Inner Doors 4
Insulation VIP+CFC Free Foaming Agent
Interior Depth Inches (mm) 28.2 (716)
Interior Door Seal Single Seal on all Interior Doors
Interior Height Inches (mm) 51.6 (1310)
Interior Material Color Coating Electric Zinc Steel Plate
Interior Volume Cubic Feet (Liters) 25.7 (728)
Interior Width Inches (mm) 30.2 (766)
Leg Levelers 2
Locking Mechanism Key
Net Weight lbs (kg) 761 lbs (345 kg)
Performance Standard  
Power Switch On-Off with Circuit Breaker
Rack Capacity 20
Refrigerant Charge/Flammable R290 in 1st Stage / R290 + R170 Mix in 2nd Stage / Flammable in JE Version; R290 in 1st Stage / R170 in 2nd Stage / Flammable in JG & JGA Versions
Refrigeration System Type Direct cooling
Remote Alarm Terminals Remote Alarm Port, RS232 / RS485 (Optional)
Setpoint Security Yes
Shelf Capacity lbs (kg) 199 (90)
Shelf Depth Inches (mm) 26.6 (677)
Shelf Material Stainless Steel
Shelf Width Inches (mm) 29.5 (750)
Shelves 3 Shelves, 4 Locations
Est. Shipping Weight lbs (kg) Estimated 849 lbs (385 kgs)
Sound Level 50 dB(A)
Style Upright
Temperature Accuracy °C ±1
Temperature Range °C -40 to -86
Temperature Uniformity °C ±5
Warm-Up Time (25°C ambient -80°C to -50°C) in Minutes 270

The Blizzard™ range of vertical ultra-low freezers efficiently stores samples by using HC refrigerants and protects them within a structure using steel walls and a composite VIP and polyurethane insulation. Multiple, polyurethane foam insulated interior doors allow easy access with minimal temperature loss to racks set on the stainless-steel shelves inside. 


We encourage you to explore the wealth of information available on our product pages. To ensure you're making the right choice, please:

  • Review the product specifications.
  • Consult with the manufacturer or
  • Get in touch with our dedicated sales and technical teams.

To ensure a seamless experience for all, we acept returns for new  items. All returns are subject to a 20% restocking fee. Please double-check that the equipment you're selecting meets your requirements.


When your order arrives, we recommend a thorough check for any potential damage before finalizing the delivery process:

  • Before signing any delivery documentation, ensure your equipment is in perfect condition.
  • If you spot any damage, kindly decline the delivery, and make a note of the damage on the Bill of Lading. Alternatively, inform the UPS/Fedex driver so they can document the reason.

If there are any concerns, please contact us within 48 hours of receipt. If damage is discovered after accepting the delivery without prior documentation, please address any claims directly with the delivery carrier.


Should you encounter any issues with your instrument that can't be addressed, you may return it within 30 days. Please note that certain products are subject to a 20% restocking fee. Customized items are final sale and ineligible for return. When we receive returned items, they undergo a comprehensive inspection and testing. We retain the right to decline returns for items that have been mishandled or improperly used.