An air curtain, sometimes called an air door, slows air and airborne contaminants from moving between environments. Mounted over an entrance to a building, walk-in refrigerator, or any place where a ...

Gearbox Heater: An intuitive feature for low-temperature environments ... For more information regarding the company’s Air Curtain option for the 991 RapidFlex® door, please visit www.overheaddoor.com ...