What’s a half tub?

Any lavatory no matter dimension would require entry to contemporary air, however not at all times from an exhaust fan. Constructing codes require any room with a rest room or bathtub to have some type of air trade. In most houses, that is completed with an exhaust fan. Nevertheless, if the house already consists of an openable window, an exhaust fan shouldn’t be required. Clearly, this won’t apply to half baths with out an exterior wall. To be efficient, exhaust followers should be able to exchanging 50 cubic toes of air per minute, or extra.