The definition of air handling unit from ANSI/AHRI Standard 430-2009 states that it's “A manufacturing facility-designed encased assembly consisting of a fan or supporters as well as other vital tools to accomplish one or more with the capabilities of circulating, cleansing, heating, cooling, humidifying, dehumidifying and mixing of air….” A https://air-handling-units-ahus58630.ourcodeblog.com/31960903/not-known-details-about-ahu-s