By Chaya Kurtz, Networx

Hamtil Construction, a remodeling contractor in Saint Louis, shared this simple test to find out if your bathroom ventilation system is working properly:

Turn your bathroom fan on.

Place a sheet of paper by its vent.

If the paper does not stick, then you know that the fan is not drawing air.

Source: http://www.networx.com/blog/tip-the-bathroom-ventilation-test

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