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Why you’ll love it

RestaurantSupply.com is your trusted source for Curtron air curtain refrigerators.

  • Authorized Curtron dealer, ensuring genuine commercial janitorial supplies and manufacturer support
  • Fast shipping available on in-stock Curtron S-IBD-144-4-FILTER air curtain refrigerators
  • Competitive pricing backed by a 30-day price match guarantee
Additional Question? Ask an Expert

Curtron S-IBD-144-4-FILTER 144 Inch Air Curtain Insect Back Door Unit

Curtron  |  MFG #: S-IBD-144-4-FILTER  |  Item #: 35756
Item: #35756

Technical details
Manufacturer Curtron Products
Model Number S-IBD-144-4-FILTER
Manufacturer Part # S-IBD-144-4-FILTER
Max. opening height (window/door) 10 Ft
Horsepower per motor 3/4 Hp
Width (side - side) 144" - 155"
Type Un-heated
Motors 4 Motors
Height 15"
Width 145"
Depth 15.38"
ETL Yes
Made in USA Yes

About this item

Product Details

The Curtron S-IBD-144-4-FILTER Insect Back Door Air Curtain is a commercial-grade air barrier designed to maintain environmental separation while preventing insect ingress in foodservice environments. This unheated air curtain covers up to 144 inches in width and is equipped with four ¾ HP motors operating at a single speed. Constructed with durable aluminized steel housing, it is suitable for installation on doors up to 10 feet high, effectively integrating into high-traffic kitchen and warehouse entrances. Featuring an integrated air filter, this model enhances sanitation and air quality standards while ensuring consistent airflow, making it ideal for kitchens, cafeterias, and food processing facilities seeking reliable environmental control without disrupting workflow.

Top Curtron S-IBD-144-4-FILTER Features

The Curtron S-IBD-144-4-FILTER air curtain offers robust performance with four 1-speed 3/4 HP motors, ensuring continuous airflow over large door openings. Its aluminized steel housing provides corrosion resistance and durability for demanding commercial settings. The integrated air filter minimizes maintenance and improves hygiene standards. Its design supports easy installation on high-traffic doors, facilitating unobstructed workflow. Equipped with an auto-door switch, the unit enhances operational efficiency by automatically activating with door operation, suitable for moderate throughput environments in foodservice facilities.

  • Optimal airflow coverage: Supports door widths up to 144" for large entrances
  • Durable construction: Made with premium aluminized steel housing for long-term use
  • Easy maintenance: Features integrated air filter simplifies cleaning routines
  • Reliable operation: Four ¾ HP motors ensure consistent airflow performance
  • Versatile installation: Suitable for doors up to 10' high in food processing and distribution

Best suited for high-traffic foodservice entrances requiring insect prevention and environmental separation

Curtron S-IBD-144-4-FILTER Technical Specs

This industrial air curtain operates with a standard electrical requirement of 120V, single-phase, at 60Hz, drawing approximately 4.5 amps, and utilizes 540 watts during operation. It is constructed with a durable aluminized steel housing and measures 145 inches in width, 15 inches in height, and 15.38 inches in depth, ensuring a robust build suitable for commercial environments. The unit is ETL listed, made in the USA, and features four motors with a maximum opening height capacity of 10 feet. Its design facilitates easy installation and maintenance, supported by a built-in air filter to uphold hygiene standards. The unit’s dimensions and performance capabilities make it compatible with high-traffic entrances in kitchens, food processing, and distribution centers. The air curtain supports effective environmental separation while resisting corrosion and ensuring long-term operational reliability.

  • Electrical Requirements: 120V, single-phase, 60Hz, 4.5 amps, 540 watts
  • Construction & Finish: Aluminized steel housing available in a durable finish
  • Dimensions: Width: 145", Height: 15", Depth: 15.38"
  • Operational Capacity: Supports door heights up to 10 feet, 144” coverage
  • Compliance & Certifications: ETL listed, made in the USA, Proposition 65 compliant
  • Electrical connection: Needs compatible power supply for optimal operation
  • Installation clearance: Adequate space above door for airflow and mounting
  • Airflow setup: Position for direct coverage over large door openings
  • Filter maintenance: Regular inspection and replacement for hygiene standards
  • Environmental factors: Suitable for high-traffic, insect-prone entrances in foodservice

What is a commercial air curtain?

A commercial air curtain is a mounted device designed to create a consistent airflow across doorways to separate indoor and outdoor environments, primarily used in foodservice, retail, and industrial facilities. The Curtron S-IBD-144-4-FILTER air curtain is an industrial-grade model featuring four ¾ HP motors, supporting large openings up to 10 feet high and 144 inches wide. Installed in kitchens, warehouses, or loading docks, it prevents the entry of insects, dust, and air infiltration—ensuring hygiene and environmental control in moderate-volume foodservice settings. Its durable construction and integrated air filter optimize sanitation and airflow performance, serving as a vital component for maintaining cleanliness and operational efficiency in demanding commercial environments.

Top commercial air curtains for large foodservice environments

Designed for high-traffic foodservice settings, the Curtron S-IBD-144-4-FILTER provides reliable insect prevention and environmental separation with four powerful motors and durable aluminum housing. Ideal for large openings, it ensures consistent airflow to support sanitation, workflow efficiency, and environmental integrity in moderate workflow kitchens. Curtron S-IBD-144-4-FILTER excels in long-term durability and performance for restaurant ready applications and food processing facilities.

  • Operational—designed for moderate throughput commercial kitchens
  • Kitchen setting—fits large walk-in entrances and loading areas
  • Foodservice category—supports sanitation in busy food prep zones
  • Workload qualifier—appropriate for environments with constant door usage
  • Use case—insect prevention and ambient separation

Why Choose Curtron S-IBD-144-4-FILTER?

Curtron S-IBD-144-4-FILTER stands out from comparable air curtains with its heavy-duty aluminized steel construction, four independent powerful motors, and built-in air filter, ensuring durability, sanitation, and consistent airflow. Its robust design and precise airflow control optimize environmental separation in demanding foodservice workflows, providing a long-term solution for large commercial entrances, and reducing insect intrusion without disrupting operations.

  • Self-contained unit ensures reliable performance with minimal maintenance
  • Handling large openings up to 10 feet high and 144 inches wide
  • Made with durable aluminized steel for corrosion resistance
  • Equipped with an air filter to enhance hygiene standards
  • Optimized for high-traffic foodservice environments requiring insect control

Certifications

ETL logo

ETL

This item has been evaluated by Edison Testing Laboratories (ETL) and has been found to meet or exceed electrical and gas safety standards.

Made in the USA logo

Made in the USA

This item was made in the United States of America.

Certifications

Customer reviews

Curtron S-IBD-144-4-FILTER Insect Back Door Air Curtain Covers Area Up To 144"W
Curtron Products

Curtron S-IBD-144-4-FILTER 144 Inch Air Curtain Insect Back Door Unit

$5,294.05 $8,733.51

Curtron Products, S-IBD-144-4-FILTER, Insect Back Door Air Curtain, covers area up to 144"W, (4) 1-speed 3/4 HP motors, for doors up to 10' high, aluminized steel housing, air filter, roller/plunger auto-door switch, FDA & USDA recommended, ETL Listed, Made in USA