Box Fan Hepa Filter Diy

20 by 20 by 1 merv 13 furnace filter.

Box fan hepa filter diy.

This filter will filter pollen dust mites mold spores bacteria proplet nuclei droplets from sneezing and smoke. Terrell suggests first buying a twenty inch by twenty inch box fan which usually run around 10 15 unless you are in. Watch out though removing the cover will expose the fan blades so if you ve got any small fingers around. If you decide that you want a hepa grade merv 13 and above the cost per filter ranges between 12 00 per filter and up depending on where you buy them and the quantity.

This project is so simple and inexpensive. In order to create a flat surface on the front of the fan for the hepa filter you need to remove the cover from the fan. Good for wildfire smoke and dust and things. Make sure to keep the fan out of their reach.

But a quick solution as posted by the university of michigan s 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. Hepa on the cheap. These filter fans can filter out the small particles that are common in wildfire or wood smoke. The diy box fan filter was able to drop pm2 5 particulates down 77 the hepa filter dropped the pm10 down 94 46 diy box fan filter with merv 13 filter see results complete results in the chart below.

After testing i was impressed by how well the diy box fan was able to remove particulates from the air. The cover also has an effect on the air flow. 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. Diy air filter one easy and affordable way to make your own air cleaner at home is with a box fan and a furnace filter.

There will be a little arrow on the filter showing which way the air should flow. 20 inch box fan.