We manufacture innovative attic fans for commercial and residential buildings. They efficiently remove moisture and heat from homes and buildings, thus dissipating damaging vapors. Entrapped water in an assembly, when exposed to low pressure, turns into water vapor and our attic fans can assist in its removal. We combine over 20 years of experience with the most state-of-the-art engineering. All of our products are tested at sustained wind speeds of 100 mph, and are made in the USA. All of our attic fans have a lifetime guarantee.