Make life more comfortable with our ceiling mount ventilation fan! This ceiling-mounted exhaust ventilation fan operates at 50/80/110 CFM and 0.3/0.8/1.5 sones, ensuring effective and quiet air movement in your bathroom environment. Constructed with a sturdy galvanized sheet fan housing and ABS fan grille, this bathroom fan is built to last. The thoughtful check valve design prevents backdrafts, keeping your bathroom environment consistently fresh. There are 2 installation options for you to choose from: joist mounting or wall mounting. What's more, certified by Energy Star and HVI, the ventilation fan ensures optimal performance while conserving energy, making it a cost-effective addition to your home.Features50/80/110 CFM large airflow capacity for enclosed room up to 50-120 sq. ft 0.3/0.8/1.5 sones low noise won't disrupt the tranquility of your bathroom Galvanized sheet housing for longevity and continued performance Multi-blade wind wheel maximizes ventilation efficiency Advanced check valve to avoid backflow of dirty air 2 ways to install: joist mounting or wall mounting With both Energy Star and HVI certifications for reliable use Wiring diagram: black-lead wire, green-ground wire, white-neutral wire Color of Fan Grille: White Material: Galvanized Sheet, ABS, Copper Motor Overall Dimensions: 18.3" x 13.4" x 4.9" (L x W) Fan Housing Dimensions: 10.4" x 10.3" x 3.5" (L x W x H) Fan Grille Dimensions: 13.4" x 13.4" (L x W) Duct Diameter: 4" Bracket Length: 14", 12" Ceiling Opening Dimensions: 10.8" x 10.6" x 4" (L x W x H) Voltage: AC 120V Frequency: 60Hz Power: 11W Airflow: 50/80/110 CFM Motor Speed: 650/800/1050 RPM Sound Output: 0.3/0.8/1.5 Sones Coverage: 50-120 Sq.Ft Net Weight: 6.3 lbs Package Includes: 1 x Ventilation Fan 1 x Instruction