Tech Drive Bathroom fan 50 CFM, 1.0Sone DC Motor, Very Quiet

Super quiet bathroom fan (1.0 sones) and strong air movement (50CFM) for bathrooms up to 50 Sq. Ft. Recommended for use in small rooms. Note: Use 3 inch ducting. 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. ABS plastic 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. Efficient and quiet, excellent DC motor performance, 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.