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 An [url=https://www.china-air-curtain.com/air-curtain/]Air 

Curtain[/url], also known as an air door, is a machine that blows a 

controlled stream of air across an opening to the other side to 

create an air seal. This seal separates different environments while 

allowing a smooth, uninterrupted flow of traffic and unobstructed 

vision through the opening. Because they help to contain heated or 

conditioned air, they provide sizable energy savings and increased 

personal comfort when applied in industrial or commercial settings. 

They also help to stop the infiltration of pollutants and flying 

insects.

[b]How Does an Air Curtain Work?[/b]

Once it is powered on, air is brought into the unit through the 

intake

The air then enters the fan housing and is accelerated by the fan.

This fast-moving air goes into a plenum, which allows for an even 

distribution of air along the full length of the discharge nozzle.

Airfoil-shaped vanes in the nozzle create a uniform air stream with 

minimal turbulence.

The air discharged through the nozzle creates a jet stream to the 

floor. Approximately 80% of the air returns to the intake side of the 

[url=https://www.china-air-curtain.com/air-curtain/air-curtain-

door/]Air Curtain Door[/url], and 20% goes in the opposite direction.