Question

explain the role of ventilators in creating a flow of fresh air in a room
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Answer 1

Answer:

Ventilation is mainly used to control indoor air quality by diluting and displacing indoor pollutants; it can also be used to control indoor temperature, humidity, and air motion to benefit thermal comfort, satisfaction with other aspects of indoor environment, or other objectives.

Answer 2

Answer:

when we breathe out in a room, the air in the room becomes warm and impure. The warm air is less dense so it rises up and moves out through ventilators