Walk into a store, supermarket or warehouse on a cold day and you might feel a blast of air. On one side is the cold, and as you enter the building you can feel a defining line where the warm air begins. The space in the middle keeps the cold from going in and the heat from going out. Or on a hot day, it keeps the heat out and the cold in. This is all done by an air door, otherwise known as an air curtain.
Air doors are useful for a wide range of purposes. Read on to learn more about air doors, why they’re practical and what features you should look for when purchasing one for your business.