Holmes HAWF2041 Dual Blade Window Fan with Thermostat, 3 Speeds, Fits 24-37′′ Windows, White

The Holmes HAWF2041 Double Window Fan efficiently exhausts hot air or draws in cool air. It features independent draw-in and exhaust settings for each fan, allowing simultaneous operation. The built-in thermostat adjusts the fan based on your preset temperature, with three speed settings available. Suitable for double-hung, vertical, and casement windows, it includes a 7-inch extender and two 3-inch extenders, fitting windows 24 to 37 inches wide. Each fan has six blades and measures 8.5 inches in diameter.