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Strap A Filter To Your Box Fan

This is a really ingenious hack to help improve air quality, especially if you're living somewhere that's a bit drier and your box fan stirs up dirt and dust. If you're using a box fan to keep cool during the summer, then consider strapping an air filter to the front of it using some duct tape. This will ensure that any air circulating through your fan is being filtered and is clean enough to breathe.

All you need for this hack, is some duct tape, a box fan, and a cheap air filter, which can be found at most stores that sell home improvement equipment.