Why is a ventilator provided in a room?

Proper ventilation is maintained in a room because when we breathe out, the air in the room becomes warm.

As we know that warm air rises up, so it will rise up and will move out of the room by the ventilators.

Then the fresh air comes in through the windows to take the place of it.

So, this circulation continues and keeps the room fresh.

A ventilator is provided in a room to keep it fresh and cool.