This Lasko box fan has a built-in MERV10 air purification ... The average CFM of a standard box fan is 1,100 CFM to 2,500 CFM. Manufacturers use the CFM as a way to empirically demonstrate the ...
The list below will help you find the best box fan for your needs. In this article: Lasko Air Circulating 20-Inch Box Fan, Black + Decker 9-Inch Tabletop Quiet Box Fan and Air King 20-Inch 3-Speed ...