How To Know If Bathroom Fan Is Working. First your bathroom will smell like a blocked drain. When you leave keep the door open.

So the bathroom fan does important work. You should choose a fan with a CFM rating that roughly equals the square footage of your bathroom but. To help the bathroom fan remove odors and hot moist air more efficiently.
When bath and range-hood fans stop working the problem is usually one of two things.
The first type of bathroom exhaust fan is the propeller or axial fan which is similar to a standard house fan. And third mould. If it doesnt all your fan is doing is making noise. When its not working you want to fix it.
