
If you don’t want to cut into ceilings or walls, the Air King 9166F 20-inch whole house window fan is a solid alternative. Installed in an upper-level window, it pushes warm interior air out and pulls fresh air in through open windows on the lower level. It also gives you three speeds at about 1100, 1450, and 1600 CFM, plus a flexible shroud to fit windows from 27 to 38 inches wide.
Available on Amazon
External purchase
Highlights
Recommended by
Trendz Gears