On of the things i wanted to do was provide a way to filter the air in the microshop.
Box fan air filter plans.
I thought i would post a couple pictures of my inexpensive box fan air filter.
The only problem is that i already have to buy a new filter and at 20 per filter it.
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.
Not only would it clean the air but it would also help to keep the shop itself cleaner by catching the dust before it settles.
So anything we can do to remove dust and particulates from the air is a step in the right direction.
Using our lighthouse 3016 iaq laser particle counter air samples were collected for 2 minutes with a 2 min delay.
Building the box fan air purifier.
Fan 20 x 20 box fan any model and manufacturer filters depends on your needs and research findings.
The diy box fan filter was able to drop pm2 5 particulates down 77 the hepa filter dropped the pm10 down 94 46.
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.
Start off by unpacking the fan and making sure that it works.
There will be a little arrow on the filter showing which way the air should flow.
To get started all you need are a 20 inch box fan and a 20x20x1 furnace filter merv 13 or higher once you have your materials place the filter in front of the fan with the airflow.
20 by 20 by 1 merv 13 furnace filter.
Some have wondered whether we should tape it onto the back of the box fan filter.
One with the box fan and one with the hepa filter.
This set up was done in 2 rooms.
I have been running this fan continuously for about two months now and i am shocked at how much dust it has actually collected.
Point that in the right direction and then tape onto the front of the box fan filter.
The easiest way to make a low cost air cleaner is to just use a cheap box fan with a furnace air filter attached in some way to the inlet side.
20 inch box fan.
This diy air filter is made from a 20 inch box fan plywood and two 20 inch air filters.
Three stage double box fan air filter.