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.
Diy air filter box fan reddit.
The fan does sound like it s a bit under strain.
20 by 20 by 1 merv 13 furnace filter.
To make one start by buying a merv 13 or fpr 10 furnace filter and tape it to the back of a box fan.
Using our lighthouse 3016 iaq laser particle counter air samples were collected for 2 minutes with a 2 min delay.
This set up was done in 2 rooms.
Right now i have a small box fan that i have taped a furnace filter to the back.
The ideal fan is a 20 in 20 in 51 cm 51 cm box fan since similarly sized filters are common.
Locate the screws on the back part of the fan and turn them counterclockwise to remove half the case as well as the fan s handle if it has one.
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.
The diy box fan filter was able to drop pm2 5 particulates down 77 the hepa filter dropped the pm10 down 94 46.
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.
These filter fans can filter out the small particles that are common in wildfire or wood smoke.
Point that in the right direction and then tape onto the front of the box fan filter.
Don t do this with a heater fan as it might set the filter on fire.
Some have wondered whether we should tape it onto the back of the box fan filter.
The filters sell for about 15.
These can be hard to find quickly with the conditions however.
Particle pollution can lead to a number of immediate and long term health impacts such as trouble breathing asthma attacks.
One with the box fan and one with the hepa filter.
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.
20 inch box fan.
But if you have an air quality emergency on your hands regional wildfires or your charred dinner under the broiler and you have a box fan tape the right sort of filter and no time to get.
Select a fan you wish to use for your filter.
Most fans will simply recirculate the air out the back around the edges if the filter plugs off.
This diy air filter for wildfire smoke is less than 20.
Shouldn t be a problem.
If you re worried you can get one of the baseboard thermostats and put it in between the fan and the filter.