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Build a do-it-yourself air purifier for about $25

Build a do-it-yourself air purifier for about $25

by | Mar 14, 2021 | HEPA

[Music] >> Airborne allergens can cause symptoms, and you can reduce the amount of airborne allergens in your house by using filtration systems. There’s a whole array of filtration systems that can be used, from furnace filters that go on the main furnace...