SCHOFIELD, Wis. — The latest advance in Greenheck’s line of SP commercial ceiling exhaust fans is the modular SP-AP fan that offers exceptional design versatility and energy efficiency. The SP-AP’s ...

This ceiling-mounted bathroom exhaust fan is from Home Depot's house brand, Commercial Electric.

Watch as plain steel sheets transform into high-performing industrial exhaust fans in this fascinating manufacturing process. From precise cutting and welding to assembly and testing, see how ...