A core function of an air curtain is its ability to separate temperatures/separate environments. Whether you’re blocking frigid winter winds from entering through a customer entrance door or separating two interior rooms, air curtains create an invisible barrier to prevent the mixing of one environment with another. In Cold Storage applications, the mixing of refrigerated air with ambient air can create safety hazards such as ice, fog and moisture buildup. Air curtains help prevent this while lessening the strain on the unit’s cooling refrigeration.