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Product: Tech Drive Bathroom fan 50 CFM, 1.0Sone DC Motor with No Attic access Needed Installation,Very Quiet Ventilation and Exhaust Fan, Ceiling Mounted Fan, White How to choose your Bathroom Fan?
What is a sone rating?
Sones, or the sone rating, is a term used to describe sound levels. Lower sone ratings are found on quieter fans. Higher sone ratings indicate a louder bathroom fan.
What is CFM?
CFM (Cubic Feet per Minute) measures fan air movement. CFM increases as air movement increases. A higher CFM is best for a larger bathroom; a lower CFM may be adequate for smaller spaces.
TD-BF-01 110CFM/1.0Sones. Ventilating for bathroom up to 110 Sq. Ft

TD-BF-02 90CFM/0.8Sones. Ventilating for bathroom up to 90 Sq. Ft

TD-BF-03 70CFM/2.0Sones. Ventilating for bathroom up to 75 Sq. Ft
TD-BF-04 80CFM/1.5Sones No Attic access Needed Installation,Ventilating for bathroom up to 85 Sq.FT
TD-BF-05-L 70CFM 2.0Sones with LED light ventilating for bathroom up to 75 Sq.FT.
TD-BF-06 70CFM 0.3Sones ventilating for bathroom up to 75 Sq.Ft
TD-BF-07 110CFM 0.8Sones with Humidity sensor ventilating up to 110 Sq.Ft
TD-BF-08-L 80CFM 1.5Sones with LED light Ventilating for bathroom up to 85 Sq.FT
TD-BF-09L 80CFM 2.0Sones with LED light and No Attic access Needed Installation, Ventilating for bathroom up to 85 Sq. FT
TD-BF-10 110CFM 1.2Sones with No Attic access Needed Installation,Ventilating for bathroom up to 110 Sq. FT
TD-BF-11 90CFM 1.5Sones with Ventilating for bathroom up to 90 Sq. FT
TD-BF-12-L 90CFM 1.5Sones with LED light Ventilating for bathroom up to 90 Sq. FT
TD-BF-13 50CFM 1.0Sones DC Motor with No Attic access Needed Installation,Ventilating for bathroom up to 50 Sq. Super quiet bathroom fan (1.0 sones) and Strong air movement (50CFM) for bathroom up to 50 Sq. Ft. Recommened for use in small room.
Easy-to-Install: No cut housing with no attic access installation and replaces most small bathroom standard fans using existing opening. it can be done entirely from the room-ceiling side – no attic access needed installation.
Low profile white grill cover,Housing size: 7.5in x 7.25in x 4in with 3in duct. ceiling mounting Opening: 7.6in x 7.3in.
The motor has a 7-second delay protection function, when the fan just starts to run.Efficient and quiet,excellent DC motor perfomance, the power is only 7W.
Energy Star qualified, UL and HVI certified for performance assurance.Acceptable for use over a bathtub or shower when installed in a GFCI-protected branch circuit. Tech Drive White