Box Fan Hepa Filter Effectiveness

The filter dramatically decreased the amount of black carbon in the room within 30 minutes.

Box fan hepa filter effectiveness.

Yes putting the filter behind the fan will prevent dust from hitting the motor and collecting on it. I think there s a small non zero benefit of that although i haven t seen anyone actually test it. The agency says the filter can give you a 90 percent improvement in fine particles. This graph from puget.

Start off by unpacking the fan and making sure that it works. 20 inch box fan. 0 01 micron 10 nanometers and above. For some of us allergens are our worst enemy the fresh pollen of spring fall foliage and of course the ever present dust.

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. 20 by 20 by 1 merv 13 furnace filter. Merv 13 box fan set up at 2 feet from particle counter. Fan 20 x 20 box fan any model and manufacturer filters depends on your needs and research findings.

This article is based on the 3m merv 12 20 x 20 pleated filter and the web absorber cut to fit 20 x 25 filter. If you want to use pleated filters and higher merv filters the only safe way to do so is have a 5 6 inch media filter installed by a professional. It falls squarely within the particle size range that hepa filters capture with extraordinary efficiency. Many media outlets have incorrectly stated that hepa.

Recently we ve heard reports of people making a diy air purifier by taping an hvac furnace filter to a box fan so we tried it and tested it. But it s not as strong as any of the actual air purifiers we tested. Hepa air purifier aeramax 300 set at 2 feet from particle counter. Building the box fan air purifier.

1 inch pleated filters are 2 3 times more restrictive than fiberglass filters right out of the box and can easily become too restrictive within 30 days of use. Point that in the right direction and then tape onto the front of the box fan filter. But here s a gut check. Make a hepa air filter out of a box fan and hepa furnace filter.

Yes hepa will provide more filtration but if cost is an issue than the diy merv 13 box fan is a sensible choice. There will be a little arrow on the filter showing which way the air should flow. People run unprotected fans we just call them fans all the time and it doesn t seem to cause much harm.