Bath fan BPT20-01CL 1.70CFM and 100CFM. 2.Longlife ... . 3.Quiet and high quality. 4.Certification:UL,CCC. Bath fan BPT20-01CLModel:BPT20-01CL70CFM,118m3/h, 1.5sones, 52db ... and corrosion.4.High quality ball bearing motor,apply low power consumption,low temperature-rising,environmental,over-heat protection device in design,achieve ... ),suitable for 65-125Sq.Ft.6.Certification:UL,CCC Bath fan BPT20-01CL