Wall Mounted Shutter Exhaust Fan: Upgrade your ventilation and keep your space fresh!Highlights at a Glance:-- Wall mounted exhaust fan-- High CFM airflow-- Automatic aluminum shutters-- Quiet operation-- Heavy duty construction-- Rust-proof aluminum blades-- Easy installation-- Wide ApplicationSpecifications:- V: 120V AC. 60Hz- Speed: 1500 RPM- Material: Aluminum Alloy Blades. Galvanized Steel Housing- Numbers of Blades: 3- Noise Level: ≤60 dB- Color: Silver- Available Options:Blade Size: 12" | Dimensions: 15" x 15" x 7.9" | Power: 35W | Airflow: 1000 CFM | Weight: 8.4 LBSBlade Size: 14" | Dimensions: 17" x 17" x 8" | Power: 50W | Airflow: 1500 CFM | Weight: 8.7 LBSBlade Size: 16" | Dimensions: 18.9" x 18.9" x 8.5" | Power: 80W | Airflow: 2000 CFM | Weight: 10.6 LBSBlade Size: 18" | Dimensions: 20.9" x 20.9" x 9" | Power: 130W | Airflow: 2200 CFM | Weight: 12.6 LBSWhat's Included:1 x Shutter Exhaust Fan1 x Mounting Kit1 x Instruction ManualImportant Notes:- Please have a qualified electrician install this fan. For best ventilation. install the fan at least 10 to 16 feet (3 to 5 meters) above the ground.- Use the fan only in dry. clean environments. Do not operate continuously in areas with high humidity or extreme temperatures.- To keep your fan working efficiently. clean the blades and guard at least once a month with a soft cloth and mild detergent. Never use harsh cleaners. Always unplug or disconnect power before cleaning to avoid accidental startup and electric shock.