Box Fan Furnace Filter Diy

This filter will filter pollen dust mites mold spores bacteria proplet nuclei droplets from sneezing and smoke.

Box fan furnace filter diy.

This project is so simple and inexpensive. To get started all you need are a 20 inch box fan and a 20x20x1 furnace filter merv 13 or higher. Purchase a standard 20 box fan. 20 by 20 by 1 merv 13 furnace filter.

Once you have your materials place the filter in front of the fan with the airflow direction. Particle pollution can lead to a number of immediate and long term health impacts such as trouble breathing asthma attacks and lung and heart disease. Insofar as filter changing costs you will find that it is still much cheaper to buy furnace filters and variants of them without sacrificing on quality or air cleaning capacity. I taped a 20 by 20 inch honeywell fpr 9 filter to a lasko 20 inch.

Your total cost for a diy box fan filter can be as low as 40 50 00 including incidentals like duct tape or higher depending on the filter options. That sticking a furnace hvac filter on a standard box fan produces a useful diy air purifier. Mine cost 20 at a local home improvement store. These filter fans can filter out the small particles that are common in wildfire or wood smoke.

20 inch box fan. Securely fasten a merv 13 filter to the air intake side of the fan. These can be hard to find quickly with the conditions however. Apply gasketing to the edges of the air intake part of the fan.

In 2018 i tested a popular claim.