Reply by DanM

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Posted on Shop air cleaner

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90 posts in 3704 days

#1 posted 08-04-2008 11:05 PM

Bob – Looks like an interesting design. The JDS has an electrostatic pre-filter + a bag type filter rated to remove 91% of particles in the 1 micron range, which are the ones said to pose the greatest health risk. I’ve seen people simply tape a furnace filter to a box fan. Such a setup is probably better than nothing, and will likely catch a lot of the larger “nuisance dust”, but unless you build one with the same level of filter elements found in the better commercial units (the filters alone cost about 50 bucks each) I think it’s unlikely you’re eliminating the more dangerous bits.

Given what I spent on the machines that make the dust, $300 to protect my lungs seems like a small investment to me.


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