Air Quality - Mask vs. Air Filtration - Page 3 - Router Forums
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post #21 of 23 (permalink) Old 08-22-2019, 12:29 PM
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Hi, just want to add a bit more info. I have two HF dust collection units. One in the garage uses the bag filter, but gets rolled outside for use. The one for the shop uses a 1micron drum style filter from Wynn. Today I'd buy the Grizzly drum which has a beater bar for easier cleaning.

I've enclosed and pretty much sealed the space between my shop and office sheds. My DC hose in the shop leads to a through the wall tube (Rockler), then into a cyclone (Super Dust Deputy) sitting on a 30 gallon fiber drum (ULine). There is a tube from the top of the cyclone into the HF DC unit. Nearly all the remaining dust falls down into a bag and the last bit is filtered by the drum filter on top.

The filtered air then returns through one more 20x20 filter back into the shop. This avoids venting warmed and cooled air to the outside. Important here in the high desert where heat is often 104 degrees and winter gets below freezing.

Finally, in both shop areas, I have WEN brand filtration units hanging from the ceiling. Got one for just $99 on sale through WalMart, the other was a little more through HD. These have timers so I can let them run for a couple of hours when I leave the shop(s). Greatly reduces dust falling on shop surfaces.

Most glasses today are shatterproof and work fine as safety glasses, but you need goggles for drifting sawdust if you don't have DC to the tool.

The pix shows the DC setup and a pix of the WEN hanging unit. Inside there's a 27 ft hose I connect to whatever tool I'm using. Third pix is of a minimal DC setup using a 2.5 inch system, with a Dust Deputy on a chip collector. The biggest shop vac you can find supplies the air flow. The chip collector and DD cyclone take most of the sawdust out so you aren't clogging up the (expensive) shop vac filter.

All that said, I still use hearing protection, a positive pressure mask and my glasses whenever I'm doing anything that involves cutting, and in my shed/shop, I wear a disposable medical fabric mask any time I'm in there.
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post #22 of 23 (permalink) Old 01-07-2020, 08:07 PM
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Have you tried the Miller Electric Half Mask Respirator? It will make you comfortable.
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post #23 of 23 (permalink) Old 01-07-2020, 11:00 PM
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Still using and very happy with the blue Rockler respirator mask. Recently bought some new filters for it.
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