We have two air ... DIY air filtration unit. Here are the instructions: If you need a visual, here are two videos that may help. How to build a box fan HEPA filter Wildfire smoke and other ...

Filters are key, whether you're using them to upgrade your home's HVAC system or put them in an air purifier or a DIY air cleaner. A filter's ability to pull particulates and other matter out of ...

Here's a quick guide to getting cleaner air: Filters are key, whether you're using them to upgrade your home's HVAC system or put them in an air purifier or a DIY air ... is a box fan, good ...

Some early research suggests these DIY air cleaners, made from cardboard, tape, furnace filters, and a box fan, might be more effective in some ways than HEPA ... of a HEPA air cleaner.