Q. What are the different types of air coolers?

Answer

Basically there are two types of cooler fan i.e.1.Room cooler fan: It is fiited on a trolley and kept inside a closed area (room)2.Desert cooler fan: It is fitter outside the room near windows to work as an exhaust fan i.e. to suck in hot air cools it and further circulates it within the area. It needs more power water and sapce than a room cooler.