Question

Why the ventilation in our room is kept at height?

Answer 1

Explanation:

Ventilators are provided in the rooms at the top of the roofs because if the air inside the room gets hot, the hot air rises up and flows through these ventilators and thus cool air remains at bottom. ... Thus ventilators maintain conventional currents to keep the air fresh in the room.

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Answer 2

Ventilators are kept at the hight of our rooms because when the air of our room becomes hot ,it goes up and go outside through the ventilator.Thus,cool air remains at the buttom.