20 inch box fan.
Box fan hepa filter diy.
Make a hepa air filter out of a box fan and hepa furnace filter.
20 by 20 by 1 merv 13 furnace filter.
These can be hard to find quickly with the conditions however.
Give this inexpensive diy air filter a try.
The filters sell for about 15.
This set up was done in 2 rooms.
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.
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.
Using our lighthouse 3016 iaq laser particle counter air samples were collected for 2 minutes with a 2 min delay.
The diy box fan filter was able to drop pm2 5 particulates down 77 the hepa filter dropped the pm10 down 94 46.
10 furnace filter and tape it to the back of a box fan.
And no box fan is engineered to withstand the extra workload of driving air through a dense filter so we can t claim this won t damage the fan s motor and we wouldn t consider it a long.
Keeping your windows and doors closed and using an indoor high efficiency hepa filter can help keep indoor air as clean as possible.
Point that in the right direction and then tape onto the front of the box fan filter.
For some of us allergens are our worst enemy the fresh pollen of spring fall foliage and of course the ever present dust.
The suction from the fan should also make the filter stick to.
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.
Click show more air filters.
To make one start by buying a merv 13 or fpr 10 furnace filter and tape it to the back of a box fan.
There will be a little arrow on the filter showing which way the air should flow.
One with the box fan and one with the hepa filter.