Running a window fan instead of the air conditioning all summer long will save you big bucks, as it uses up a lot less energy. The dual blade twin window fan can be used in small dorm rooms, apartments, or multi-story homes. The most effective way to use our window fan is to have them on Exhaust setting during the day, which will take away the hot air in the room. Once the air is cooler at night you can set your fan to Intake which will use both turbofans to bring in that refreshing air from outdoors.
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