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 ...

Which is why [Adam Kelly] decided to design this DIY HEPA air purifier that can be built for less than $100 ... went with a 120 mm computer case fan coupled with a step-up converter that can ...

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.

However, there are many other air purifiers ... the Puget Sound Clean Air Agency has developed an effective DIY air purifier that you can build at home with a box fan and a standard furnace ...

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 ...