Why high speed fans are placed at the entrances in air conditioned halls? Like gourmet shops etc.

Question 1

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1416997795046997 · Answer · 2017-10-08T12:19:48+0000

To separate two different spaces.... they are called air doors and they not only preserve the temperature but also prevent entry of contaminants.

1591980480826188 · Answer · 2017-10-08T12:21:16+0000

They are also called air curtains to prevent flies, dust, etc

2085473511466426 · Answer · 2017-10-08T12:28:40+0000

Air barrier, air door, whatever you name it. High speed air is basically used to maintain the temperature. It's aesthetically unpleasant to put some sort of plastic sheet so yeah such barriers are used. *Cooling Bahar Ni jaati* ;)

10154973151018250 · Answer · 2017-10-08T12:29:01+0000

These are called air cutters They prevent colling to go out nd same prevent outer hot air to come in to maintain the temperature of Hall

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Why high speed fans are placed at the entrances in air conditioned halls? Like gourmet shops etc.

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