Is a normal fan ok to build an air cleaner with

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Forum topic by ckorkyrun89 posted 10-24-2014 02:53 PM 1118 views 0 times favorited 2 replies Add to Favorites Watch
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65 posts in 1991 days

10-24-2014 02:53 PM

I am interested in building an air cleaner for my shop. Ideally, I would like to use an old furnace blower because it seems as though most air cleaners are built with squirrel cage fans. I have not been able to find an old furnace blower yet and am considering using a fan that I already have.

Below is the link to that fan.
Fan at Lowes=

The product specs say over 6000 cfm (which I find a bit hard to believe) and it is about the right size to use 20”x20” filters with. Can anyone see any issues with using this type of fan? One of my concerns is that it will not produce as much pressure as a squirrel cage fan and may have troubles pushing the air through the filters.

2 replies so far

View ChrisK's profile


1946 posts in 3049 days

#1 posted 10-24-2014 03:27 PM

I use one along with my dust collector. No it is not as good as a larger one with a furnace blower. I usually place it near where I am sanding and let it do its thing. I use the better 1” thick pleated filters. Vacuum off eh dust once in a while and replace the filter when it is really full.

-- Chris K

View timbertailor's profile


1594 posts in 1392 days

#2 posted 10-24-2014 05:11 PM

You will not find a filter at your local hardware store that will provide adequate filtration to be safe or provide the flow necessary to keep up with that size blower.

The last thing you want to do is keep recycling the more dangerous, smaller particles (under 30 microns) through the work space over and over.

I would visit this site and read all you care to digest first, before proceeding.

-- Brad, Texas,

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