Exhaust fans do not work like typical fans because they do not blow the air into you. Nevertheless, that does not make them any less helpful. In fact, exhaust fans are vital to many types of facilities. They expel stale air from the inside and draw in fresh air from the outside. This is why unlike other fans, exhaust fans are installed onto precut holes on the building’s exterior walls. These fixtures are your low-cost yet highly-effective ventilation solution. They are ideal for warehouses, garages, commercial kitchens, gyms, and hangars.