... bearing motor Bathroom fan with light and heater BPT10-50HLModel: BPT10-50HL50CFM,85m3/h,2.0sones,38db,4"Duct,Power:30+50W1.50CFM ... unity,very comfortable.2.High-efficiency heating element,with over-heat protection device,safe and reliable,long life.3.Enclosed housing design use ...