Air curtain
Air Curtain
the flow of forced air that maintains temperature differences between refrigerated displays and the store, or between the inside and outside of the store. Air curtains are designed to minimise the psychological barriers posed by tangible doors separating
Air Curtain
A method of containing oil spills. Air bubbling through a perforated pipe causes an upward water flow that slows the spread of oil. It can also be used to stop fish from entering polluted water.