The Broan P5 Internal Blower is compatible with Broan’s Elite RMIP Series range hoods. This internal blower is constructed to provide high speed ventilation and long-term durability and to meet the needs of the increasingly popular professional-style cooking appliances in the home. Ranging from 460 CFM (vertically ducted) to 500 CFM (horizontally ducted) an from 10.5-10 Sones, this HVI certified blower was designed to be as silent as possible by using the finest motors and balance wheels.