Box fan furnace filter. The silicone used is a proprietary formula that resists uv rays and ozone. I use 20x20 box fans. This would be a good proj. As you can see in his video demonstration terrell tapes a 20 by 20 inch whole house air filter merv 13 or higher which sells for 15 over a 20 inch square box fan which you can find for.
Instant cleaner air for not a lot of money. Pollentec box fan air filter effective filtering screen for pollen dust mold spores and pet dander reusable washable design compatible with lasko models b20200 2301 3733 made in usa 36 out of 5 stars 246. First off a little history of how this project got started. This project is super simple for anyone to do and you will breathe in the results immediately.
This creates an affordable and effective air purifier. I have one in the window and every couple months i have to pull it down and clean the fan and the screen that is on the window. They also recommend placing the filter on the back of the fan. Terrell director of the michigan sinus center demonstrates how to build an air purifier with a hepa filter for about 25 with parts from you.
There is a product on amazon called box fan filter grip. The box fan filter grip consists of 2 silicone bands that are sized correctly to hold a 1 x 20 x 20 furnace filter to a typical 20 x 20 box fan. It is 2 silicon bands sized to hold a 1 x 20 x 20 furnace filter to a box fan. All it takes to have cleaner air in your home is a 20 inch box fan furnace filter and 4 zip ties.
20x20 fan with air filter. These fans werent designed to be run with a filter. But a quick solution as posted by the university of michigans medical center is to create your own filter using a box fan and a standard hepa filter both readily available in most hardware stores and costing about 25 for everything.