Diy Hepa Filter Box. They should fit perfectly like a piece of a puzzle. Reasonably effective for a much lower cost, he says.
Hepa filter air filter companion cube diy fan garage tools diy cleaners build your own secret obsession handmade crafts. If you need to purify the air in the dirtier and dustier environments, then you surely need this better diy hepa filter. I actually had 3m products group test a box fan filter in their chamber that they test room air purifiers.
A typical box type fan.
Yes, hepa will provide more filtration, but if cost is an issue than the diy merv 13 box fan is a sensible choice. The device operates using uv light and ozone. I tried to google hepa filter media but really couldn't find any online that would sell to a regular person (not in quantities of 1000 meters of the stuff). Grab a 20” x 20” x 1” furnace filter and just place it on a cheap 20” box fan and gain an instant cleaner air purifier without getting expensive.