They can save energy by keeping cool or warm air in. An optional heater kit is available for colder climates.
Typical applications are restaurants, food processing, and shipping/receiving docks. The units are usually header-mounted and may be operated with a manual switch. USDA and city code health department-approved units are available.
Air Curtains & Fly Fans
Air Curtains generate a temporary invisible barrier of air as a walk-through or overhead door is opened to keep insects and environmental elements out.
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