Ventilators are used for the purpose of letting hot air pass out of the room. Hot air is heavier than cold air. So cold air sinks down towards the floor while hot air rises up towards the roof. Thus ventilators are present near the roof, so the hot air than had accumulated there can escape out easily.
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Hello!Ventilators are used for the purpose of letting hot air pass out of the room. Hot air is heavier than cold air. So cold air sinks down towards the floor while hot air rises up towards the roof. Thus ventilators are present near the roof, so the hot air than had accumulated there can escape out easily.
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