Air Quality - Mask vs. Air Filtration - Page 3 - Router Forums
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post #21 of 29 (permalink) Old 08-22-2019, 11:29 AM
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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 29 (permalink) Old 01-07-2020, 07:07 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 29 (permalink) Old 01-07-2020, 10:00 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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post #24 of 29 (permalink) Old 02-04-2020, 02:54 PM
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I was looking for one of the Power Respirators that Rockler used to sell that DesertRatTom said he used. When I called Rockler, they said they no longer carried it and couldn't (?wouldn't ?) give me any info about it. Does anyone know anything about the manufacturer from the user manual or other information? Thanks for any info you can provide. I do have a dust collector and plan to build airbox cleaner, but this mask seems to have some advantages since I have a beard and not sure how well the masks without some positive pressure to on keeping the fine particles out.
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post #25 of 29 (permalink) Old 05-14-2020, 08:20 AM
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I have a B Bielcor Dust Mask Respirator. Since the model is approved by the National Institute for Occupational Safety and Health, it qualified enough for users to use in various circumstances
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post #26 of 29 (permalink) Old 05-14-2020, 09:56 AM
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Quote:
I don't want to ruin my health - eyes, fingers, lungs - but I'm not building a bunker and I don't need to cycle enough air for an army. What's the middle ground?
Good dust collection at your machines, and an N95 mask.

If you notice a fine layer of dust everywhere the day after you were working, then an air filtration unit wouldn't hurt. But collecting the dust at the source is much better than an air filtration unit.

I'm obviously in the minority, but I rarely wear a mask, unless I'm sanding or spraying finish (water based). But my machines are not filling the air with dust.

Also, some people are far more sensitive to certain species of wood. For them, the slightest amount of dust can be a big problem. For others, dust does not bother them at all.
Wood dust is a carcinogen, so you don't really want to be breathing it.

Ger

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post #27 of 29 (permalink) Old 05-14-2020, 10:37 AM
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Quote:
Originally Posted by ScottyDBQ View Post
I was looking for one of the Power Respirators that Rockler used to sell that DesertRatTom said he used. When I called Rockler, they said they no longer carried it and couldn't (?wouldn't ?) give me any info about it. Does anyone know anything about the manufacturer from the user manual or other information? Thanks for any info you can provide. I do have a dust collector and plan to build airbox cleaner, but this mask seems to have some advantages since I have a beard and not sure how well the masks without some positive pressure to on keeping the fine particles out.
Now sold by woodcraft. https://www.woodcraft.com/products/p...red-respirator

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post #28 of 29 (permalink) Old 05-14-2020, 12:37 PM
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Regarding the power mask respirator pictured in DesertRatTom's post from back on October 13, 2016, and in his post earlier today, that mask is available from Grizzly as item T30024. I checked out the link that DRT had to Woodcraft and it shows that they are out of stock and they are unsure when they will be available again. I got mine from Grizzly about two months ago. I really like the mask and if you are looking for it and woodcraft is not show it as available, you might want to check out Grizzly. A couple weeks after buying this, I contacted Grizzly about getting replacement filters. They did not have any in stock but thought the "86893 cartridges" may work on this model. I don't know if DRT got his from Woodcraft or Rocker when they still had them, but I will check Woodcraft out. I think the positive pressure makes this mask a nice product.
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post #29 of 29 (permalink) Old 05-14-2020, 12:57 PM
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Correction -- H6893 cartridges, not 86893. Sorry.
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