Question

Explain how the ventilation in a room is possible ?​

Answer 1

Answer:

open windows/doors

Explanation:

Answer 2

Mechanical fans drive mechanical ventilation. Fans can either be installed directly in windows or walls, or installed in air ducts for supplying air into, or exhausting air from, a room. ... In a negative pressure system, the room is in negative pressure, and the room air is compensated by “sucking” air from outside.

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