Air Quality - Mask vs. Air Filtration - Page 2 - Router Forums
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post #11 of 21 (permalink) Old 12-20-2016, 04:26 PM
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Wear a mask and get a vacuum cleaner attached to the tool you are using (which is far more effective than the air filter units which hang from the ceiling) and make sure that your vacuum has a fine dust (HEPA?) filter and that your mask fits properly because if it doesn't you'll just be breathing-in dust round the sides of it.
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post #12 of 21 (permalink) Old 02-03-2017, 09:02 AM
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Mask and dust collection 100 percent. And I agree with Stick, I stopped using steel wool decades ago.
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post #13 of 21 (permalink) Old 02-03-2017, 10:34 AM
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A mask is a must. The only reason I also have air filtration is to help minimize dust getting into the rest of the house. If my shop was in a detached garage, I probably wouldn't bother with it.

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post #14 of 21 (permalink) Old 02-03-2017, 11:19 AM
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@bdbailey Budget is always a problem and finding a balance between that and safety is tricky. A box fan and filter needs to be set near a wall so it creates a circulation. In a two car garage, I'd set up two fans on opposite walls, suspended from the ceiling With an attached garage, the problem will be tracking sawdust into the house, and having the fine, suspended particulates leak into the house.

Sawdust extraction at the tool is also very important. Sweeping up sawdust after you finish working is likely to only launch more fine particulates into the air. I spent a lot of money trying to put together a good home brew DC (Dust collection) setup, none of which really did the job. Finally, I got the Harbor Freight unit, on sale now and again, for $187 with a holiday weekend 25% off coupon and on sale. Still had to buy a couple of other parts and a 4 inch hose to attach to different tools. It cost me about half what I'd spent on various parts, blowers, barrels and such. I have two, one in my 12x24 shop that has a really fine additional drum type filter, and the other in my garage where I prep wood and resaw. The garage unit just has the cloth filter. The shop's canister filter lets me recirculate shop air rather than blow it out along with the heat and AC air.

A good DC system does not negate the need for a mask, eye and hearing protection. The DC units also serve to vacuum up the shop floor and shelves.

All that seems like overkill to some, but for a grand total of about $350, you can avoid a raft of breathing problems. I am a throat cancer survivor and the carcinogens in sawdust are NOT going into my throat and lungs! Discuss this with your spouse so she's on your side on budgeting for this. After taking me through radiation and chemo, my wife had no problem with my investing in good DC.

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post #15 of 21 (permalink) Old 02-03-2017, 11:30 AM
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I like this one, Rockler Power air respirator, Power Air Respirator - Rockler Woodworking Tools. Glasses go over that, either goggles or a pair of safety glasses over that. Runs on 4 AA batteries, so I keep a couple of sets of rechargables on hand. Fan in mask puts in positive air pressure, and mine leaks air over my cheeks and keeps my glasses from fogging. Plenty of air flow, no dust gets through. Picture below.
This is a subject that's on my mind a lot right now. I bought the RZ industries mask, and it works really well. But it filters so well that, with me having pretty severe COPD, it's an effort to inhale through the filter. I had been thinking about coming up with a fresh air mask, with a pipeline running to outdoors to plug into wherever I'm working, but those masks are really pricey.

I hadn't seen these powered units, and it seems like a good solution for the money. You're a veritable encyclopedia here lately, Tom. Thanks for the tip.
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post #16 of 21 (permalink) Old 02-03-2017, 11:32 AM
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@bdbailey Almost forgot, Shop heating solutions. There was a long discussion on this recently. I have a similar problem during winter. Cold hands around spinning blades is a dangerous situation. Some solutions were using the gas outlet for a dryer to feed a closed flame heater. There are combination AC/heater units that are electric. But after all that, I realized that I had to insulate the ceiling and drywall it or any heat would simply be dissipated. The walls are already insulated, so since I'm too old to do that project, someone's coming in to do it with at least R38 batting.

That done and about R12 foam/bubble insulation in the roll up garage door--with good door seals--and I'll just run the gas dryer a few minutes and vent it into the garage. There is enough fresh air circulation from water heater venting so it will work and once heated enough, it will cool slowly. During summer (desert here), the insulation will mitigate the heat. Maybe AC some time in the future, but I'll see if it's needed. My shop has AC. Radiant space heaters near your work area is another help. Just no open flame or heater elements.

Hope this helps.

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post #17 of 21 (permalink) Old 02-03-2017, 11:34 AM
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@bdbailey Finally, I got the Harbor Freight unit, on sale now and again, for $187 with a holiday weekend 25% off coupon and on sale.
I just saw this post after answering your previous one. Perhaps you can guide me on that HF unit. The specs say that it runs at 20 amps. That may just be at startup, but with my wiring, I'm afraid to draw that much if the unit actually runs at that. Do you know what the specs for 20 amps are about?

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post #18 of 21 (permalink) Old 02-03-2017, 12:05 PM
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I just saw this post after answering your previous one. Perhaps you can guide me on that HF unit. The specs say that it runs at 20 amps. That may just be at startup, but with my wiring, I'm afraid to draw that much if the unit actually runs at that. Do you know what the specs for 20 amps are about?
I am certain it is 20 amps on startup. I've been running it on a 15 amp circuit in the garage and what turned out to be a 15 amp breaker in the shop, and both breakers have stayed on. Depending on you source of shop power, you might consider having an electrician add a 20 amp breaker and a special circuit to the shop. My wife hired one to run 3 20 amp circuits out to my shop about 50 feet back in my back yard. 1 for dc, one for the tool in use, one for the LED lights and AC/Heater

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post #19 of 21 (permalink) Old 02-03-2017, 01:38 PM
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I am certain it is 20 amps on startup. I've been running it on a 15 amp circuit in the garage and what turned out to be a 15 amp breaker in the shop, and both breakers have stayed on. Depending on you source of shop power, you might consider having an electrician add a 20 amp breaker and a special circuit to the shop. My wife hired one to run 3 20 amp circuits out to my shop about 50 feet back in my back yard. 1 for dc, one for the tool in use, one for the LED lights and AC/Heater
Good idea. I have a blank space for a breaker, and the breaker box is right above where I will put the DC. Thanks.

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post #20 of 21 (permalink) Old 08-22-2019, 08:50 AM
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I know some people on Router Forums recommend air filtration of some sort. Health is so important.
It's good to see that you're thinking about your health. I'm new to dust collection but in my research it's scary to see just how much small (and sometimes microscopic) dust particles can hurt you. Air filtration for dust collection is such a vital an important part of a lot of industries: woodworking included.

Check out the graphic I made below: these are some health effects by the WHO (World Health Organization):
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