Definition for word: Exhaust Fan

Any small fan located in the wall or ceiling that exhausts air, odors, and moisture from the bathroom, kitchen, or basement to the outside.

Referrence from

A whole-house fan is a type of fan installed in a building's ceiling, designed to pull hot air out of the building. It is sometimes confused with an attic fan.

A whole-house fan pulls hot air out of a building and forces it into the attic space. This causes a positive pressure in the attic forcing air out through the gable and/or soffit vents, while at the same time producing a negative pressure inside the living areas which draws cool air in through open windows.

Attic fans, by comparison, only serve to remove some hot air from the attic; no direct cooling effect is provided to the actual living space.

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