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This will show you how to make your room cooler on those hot summer days!
For this super-fast and easy life hack, all you need is a window and a mini fan.
Just open your window up wide enough so that it can fit the height of your fan.
Now, carefully place your fan inside the window. The fresh air will be new and not used air going into the fan unlike if you shut the window ...
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Insulate your windowsby cherio_056
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