Where Did That Blast of Air Come From?

Have you ever walked into a store or building and been hit with a blast of warm or cool air? You have experienced an air curtain hard at work.

Air curtain technology draws interior air from the facility and discharges it through field-adjustable linear nozzles that “seal” the door with a non-turbulent air stream that meets the floor at the threshold of the door opening.

A properly sized air curtain can contain 70-80 percent of that air and return it to the space. And because the air curtain discharges air at high velocities, it effectively prevents outside air and insect infiltration. A limit switch that is triggered when the door opens and deactivates when the door closes typically activates them.