Box Fan Hepa Filter Reddit

I need to replace both filters now because it s amazing how dirty and gross they are.

Box fan hepa filter reddit.

Fan 20 x 20 box fan any model and manufacturer filters depends on your needs and research findings. These can be hard to find quickly with the conditions however. Right now i have a small box fan that i have taped a furnace filter to the back. Further testing needs to be done with higher merv ratings and over longer periods of time.

The suction from the fan should also make the filter stick to. Start off by unpacking the fan and making sure that it works. No pedants here yet so i ll say it. So it must be working.

To make one start by buying a merv 13 or fpr 10 furnace filter and tape it to the back of a box fan. You re cleaning the same amount of air per minute the fan still pulls the same volume of air through it but the filters should last 4x as long. The filters sell for about 15. 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.

By the time you buy the correct fan and get the sealing figured out you might as well have spent the 300. Building the box fan air purifier. Yes hepa will provide more filtration but if cost is an issue than the diy merv 13 box fan is a sensible choice. Hepa air purifier aeramax 300 set at 2 feet from particle counter.

Merv 13 box fan set up at 2 feet from particle counter. My hepa filter companion cube box fan now cleans 4x the surface area. My top two tips are to put the filter on the intake side and then you don t need to secure it to the fan. Also i use a cheaper filter on the outside of that to make the more expensive filter last longer.

Box fan merv 10 pollentec air filters pollen dust mold spores and pet dander biodegradable electrostatic design 6 pack compatible with lasko models b20200 2301 3733 box fans 20 5 frame 4 0 out of 5 stars 4. The fan does sound like it s a bit under strain. The box fan is gonna be pretty shitty at generating the pressure delta you need to pull air through the filter theres just way too much slippage around the vanes.