Allergies and wood species

I am an allergy and asthma sufferer who has been woodworking for about a year now. Poor choice of hobbies I know, but now that I am hooked there is little that I can do about it.
I have spent considerable effort putting in dust collection and I usually wear a high-quality dust mask when doing any work that kicks up sawdust. That said, inevitably some amount of material ends up getting through and causing some irritation for me. I find that red oak is somewhat worse than mahogany or cherry, but nothing I have experienced to date is as bad as MDF. I plan to eventually build some wine racking and I understand that redwood generates even worse (i.e., more toxic) forms of dust than MDF, so I will probably go with mahogany.
Here's the general question: what are your experiences with different wood species and the amount of irritation their dust cause? Is their a web site that has this sort of information? (I seem to recall a few months ago that someone was having problems with an exotic wood and was directed to a website to check on its degree of toxicity.)
Lars
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Thu, Dec 30, 2004, 5:47pm (EST-1) snipped-for-privacy@gsb.uchicago.edu (LarsStole) I am an allergy <snip> I usually wear a high-quality dust mask <snip> Is their a web site that has this sort of information? <snip>
Define "usually".
Define "high-quality dust mask".
Two minutes on google should give all the sites you need.
JOAT People without "things" are just intelligent animals.
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On 2004-12-30 20:45:01 -0600, snipped-for-privacy@webtv.net (J T) said:

When I'm working with anything that makes dust -- table saw, router, bandsaw, sanding. I don't wear it when I'm measuring or planing.

I forget the brand, but it has two organic cartridges that I replace as needed.

I googled before posting here. I didn't find much that was useful in terms of common wood species and a ranking their saw dust irritation. Perhaps I am not very good at googling or I have not been clear in what I am looking for.

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Try Google Groups. About a week ago on alt.food.barbecue a list was posted.
http://groups-beta.google.com/group/alt.food.barbecue/browse_thread/thread/3e09ae2dda26522f/1c58ebadee960d0d?q=wood+toxicity&_done=%2Fgroup%2Falt.food.barbecue%2Fsearch%3Fgroup%3Dalt.food.barbecue%26q%3Dwood+toxicity%26qt_g%3D1%26searchnow%3DSearch+this+group%26&_doneTitle ck+to+Search&&d#1c58ebadee960d0d
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Thanks! Just what I was looking for.

http://groups-beta.google.com/group/alt.food.barbecue/browse_thread/thread/3e09ae2dda26522f/1c58ebadee960d0d?q=wood+toxicity&_done=%2Fgroup%2Falt.food.barbecue%2Fsearch%3Fgroup%3Dalt.food.barbecue%26q%3Dwood+toxicity%26qt_g%3D1%26searchnow%3DSearch+this+group%26&_doneTitle ck+to+Search&&d#1c58ebadee960d0d

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No good, no good, no good. That dust(fine dust) gets all over the place and goes back into the air as you walk around. I have a dust collector (Delta 2HP unit), one of those JDS powered air filters AND a 3M Airmate. The Airmate is a powered respirator that can use various cartridges - to filter dust, ammonia and some very nasty organic chemicals.
I, like you, have allergic reactions to dust. The Airmate lets me work in comfort ( but don't eat beans and use the dust filter only cartridge ). The air intake is in exactly the wrong place...
--
"De inimico non loquaris sed cogites."

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Lars Stole wrote:

Hi Lars,
If the reaction you have is only respiratory you may want to consider one of the positive pressure air masks such as the 3M AirMate:
http://www.envirosafetyproducts.com/html/Subcategories/airmate.htm
For wood toxicity listings see:
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=wood+toxicity+table
-- Jack Novak Buffalo, NY - USA (Remove "SPAM" from email address to reply)
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Check out Dustfoe 88 from MSA - a simple and very good mask designed in Pittsburgh for coal miners years ago - about $25 with five filters - I think I used one filter for five years!
Have used one for thirty years. I use them for every cut in the shop and I often forget to take mine off, since they are so comfortable.
I buy them and pass on to all my friends. Every family should have a good dust mask - even if only for sweeping out a garage.
Sadly, the public is so inured to crumby masks that they dont even want good ones, but if you find a distributor, you can get one in a week.
Best
Lars Stole wrote:

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wrote:

especially nasties like Tauga nuts.
It's a good design, inexpensive (relatively) and effective. It isn't for mists or vapors, but that's not a problem for me.
--RC

"Sometimes history doesn't repeat itself. It just yells 'can't you remember anything I've told you?' and lets fly with a club. -- John W. Cambell Jr.
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Dust collection: http://billpentz.com//woodworking/cyclone/index.cfm
Wood safety and toxicity: http://www.hse.gov.uk/pubns/woodindx.htm http://www.cs.rochester.edu/u/roche/rec.wood.misc/wood.toxic
There are many more if you Google...
JeffB
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There's dust as an irritant and oils or other extractives as sensitizers/allergens, so your strategy has to be control of _both_ when generating dust, and the second after the dust settles. That means filtered and charcoal if you want one mask to do all.
Only you know your circumstances, though the toxic wood articles (everything is toxic according to a lawyer) can be a guide as to when you might be able to go dust control only and cut down on the weight. Generally speaking, rain forest stuff has evolved more efficient insecticide/fungicides than temperate forest stuff, because it's vulnerable almost year-round.
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