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Bathroom Ventilation Minimum Bath Ventilation The purpose for a bath fan in a modular home is to expel excessive moisture from the bathroom. In addition bath fans pump ugly smells to the exterior of the home as well. Bath Fan Sizing Bath fans need to be sized correctly to provide for eight air changes and hour. Undersized bath fans in a modular home will allow excess moisture to exist in the home. Bath fans can also be used to provide air changes to entire home when properly sized. Often modular home factories will install oversized bath fans to accomodate all of their floor plans. Loud Bath Fans An oversized loud bath fan in a modular home is almost worse than an undersized quiet bath fan. If your bath fan sounds as though you are on a runway, the propensity to use your bath fan is next to nil. Although the price for an ENERGY STAR rated bath fan will cost more, it will cost less to operate and it will be used due to the lower sounds. Common Brands Modular home factories use brand name bath fans such as Broan and Panasonic. This allows you to select exactly the best sized bath fan for your prefab's bathroom. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||