Comfort Zone CZ310R - White 9 Inch Reversible Twin Dual Blade Window Fan with Full Function Remote Control. Stay cool with Comfort Zone’s reversible twin window fan. This easy to use fan is equipped with independently controlled motors, three whisper-quiet speeds, and a full-function remote. Expander panels allow for a safe, custom fit. The cool feature has both fans working to bring fresh new air to your room; exhaust function removes hot sticky air from your room; circulate function will have one fan pull hot sticky air out while the other fan brings cool fresh air in.