Box Fan Furnace Filter Air Purifier

The filters sell for about 15.

Box fan furnace filter air purifier. That sticking a furnace hvac filter on a standard box fan produces a useful diy air purifier. The fan in the window also positively pressurizes the indoor space so that contaminants are pushed out preferably through another window. 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 3 5 out of 5 stars 257. Conventional air filters will cost a minimum of 60 00 off the shelf for a relatively small unit.

I taped a 20 by 20 inch honeywell fpr 9 filter to a lasko 20 inch. If you want to filter out the most things you should be looking for a merv 11 filtration rating or higher. All you need to make this is the correct filter a box fan and tape. The box fan with the merv 13 can filter the air before it enters the space thereby reducing allergens and other pollutants found in outdoor air.

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. To get started all you need are a 20 inch box fan and a 20x20x1 furnace filter merv 13 or higher. All you need to do is buy what s called a merv 13 or fpr 10 furnace filter and tape it to the back of a box fan. Build an affordable air purifier with a box fan and hepa filter california is still reeling from devastating wildfires that have tragically claimed many lives and thousands of homes.

I decided to go with the hospital grade merv 13 furnace filter. A good quality 3m merv 12 filter with an electrostatic grid costs about 15 00 and an activated carbon pre filter costs between 10 00 and 20 00 depending on the brand and design. Once you have your materials place the filter in front of the fan with the airflow direction. In 2018 i tested a popular claim.

Don t worry if you don t have any tape because the.