Exhaust fans help maintain proper air flow through an HVAC system. The Air Conditioning Contractors of America outlines the standards that HVAC system designs need to follow to provide proper air exchange in enclosed structures. These standards must be considered when choosing the proper exhaust fan for an HVAC system.
Exhaust fans help eliminate moisture within an indoor environment. Moisture can cause wood to warp and paint to peel. The presence of moisture can also promote the growth of mold spores. Utilizing an exhaust fan can curb the detrimental effects of excessive moisture in an environment.
An exhaust fan is comprised of several integral components. Airflow is promoted when an exhaust fan's blades rotate. Many exhaust fans feature switches and timers that activate the fan. Some exhaust fans are even fitted with lights, increasing their practical applications. Exhaust fans are typically mounted on a ceiling or in a wall.