Oneida Supercell dust collector experience?

Echd

C
User
I found this, just now, and wanted to share.


Matthias's page about dust collection, etc.

Good read as well as video.
I'm not going to toss my DC but that's incredibly interesting.

The tests where even crappy DC bags could get particulate levels to below ambient were interesting.

Especially this:

And, of course, some particles are more harmful than others. On this subject, I exchanged some emails with Dwight A Kaufman, a doctor who emailed me with his comments. Here are some of his emails below. Food for thought!



Subject: Wood Dust
Hi, Several years ago I attended an Occupational Medicine Continuing Education Conference at the University of Cincinnati. The main subject was Occupational Lung Disease. I asked one of the lung specialist if wood dust cause lung disease. He answered "No" with no hesitation or reservation. Some people do develop an allergy to wood which may aggravate their asthma or hay fever.
Dwight A. Kauffman MD

In a later email he writes:


Yes, you may quote me. I do not have a reference. And I�ll offer the following discourse for those interested:
Our airway, windpipe and bronchi, divide 17 or 18 times before reaching the terminal air pockets where oxygen oxygen and carbon dioxide exchange takes place. In about the first half of these bronchi, there is a constant production of mucus that is continually moving up to remove dust, bacteria, etc.
Most wood dust is trapped in this mucus and removed. Tobacco smoke goes all the way out to the air pockets and some comes back out. Some gets trapped.
Asbestos and silica are inorganic material that can be small enough to get in where the removal system doesn�t work. And being inorganic, the body cannot break them down.
The risk of lung disease from asbestos is greatly exaggerated. For 15 years I worked in a community that had had a factory that made asbestos brake and clutch linings. During those 15 years I did not see or know of anyone with the kind of lung cancer asbestos is supposed to cause.
I did my Internship in western Pennsylvania and saw lots of people with Black Lung disease.
Tobacco smoke damages the airways, thus chronic bronchitis. It also damages the air pockets, thus emphysema. These usually occur together and that is known as COPD.
In chronic bronchitis, the wall of the bronchi are damaged, so that when a person coughs or breaths hard, the airway collapses and traps air. In emphysema, the air exchange pockets that are normally like a bunch of grapes break down and look like an apple, loosing lots of surface area for oxygen exchange with the blood.
COPD is almost totally due to tobacco. Asthma is due to inflammation and causes swelling, increased mucus production and spasm, but does not cause the structural damage that tobacco smoke does.
When a company that makes air filters puts a picture of a chest X-ray in their ad, that is scare tactics.
Air filtration is primarily for comfort and esthetics, not health.
Ninety percent of chronic lung disease and cancer are preventable since they are caused by tobacco.
Asthma and allergies are treatable, and should be treated vigorously.
Dwight A. Kauffman MD
 

Warped Woodwerks

.
Senior User
🎤 (mic)

Right? Good read. Of course, it is only 1 source, even if it is allegedly from an MD. I am not dismissing any of the above mentioned, from Matthias's site, but just wanted to share. Food for thought.

I know we are somewhat on topic with this post, to some degree, but we are also in the weeds.

After reading this entire post... some comments make me think this is sort of like telling someone how to raise their child. 🤪
I know we all care about one another on this site, and want everyone to be safe and aware of the potential hazards of woodworking, but in the end... if someone wants to smoke 40 packs a day, drink 2 gallons of beer a day, jump off a 200' bridge, or do nothing but sit and watch T.V., that is ultimately up to them.

With my comments\posts I am not implying one thing or another. I would just like for us all to be informed as best as we want and can be, provide good information to one another so we all can make sound judgment on the choices we make with woodworking, and enjoy woodworking as best as we can for as long as we can, and be as healthy as long as we can be, so we can continue doing what we all enjoy & love.... woodworking.
 

Echd

C
User
Here is also the link to a scholarly paper by a cancer research center in Seattle. I'm not paying to get the whole thing, but the gist:

From the Mathias Wandel article, "Wood dust exposure and risk of lung cancer"

The abstract:

Abstract​

Objectives Despite the compelling association between wood dust and sinonasal cancer, there has been little systematic and rigorous study of the relationship between wood dust and lung cancer. We investigated whether a history of wood dust exposure through occupational and hobby-related activities was associated with increased lung cancer risk.
Methods We conducted a population-based case-control study, with 440 cases and 845 age-matched controls. Using detailed work and personal histories, quantitative estimates of cumulative exposure to wood dust (thought to be primarily from softwood) were calculated for each participant. Using unconditional logistic regression adjusted for age and smoking status, risk of lung cancer was examined in relation to employment in wood-related occupations, working with wood as a hobby, as well as cumulative wood dust exposure that took into account both occupational and hobby-related sources.
Results While we observed an increased risk of lung cancer associated with working in a sawmill (OR=1.5; 95% CI: 1.1, 2.1), we found no evidence of increased risks with other occupations, working with wood as a hobby or with estimated cumulative exposure to wood dust. Contrary to our hypothesis, we observed modest decreased risks with exposure to wood dust, although no dose-response relationship was apparent.
Conclusions This study provided somewhat reassuring evidence that softwood dust does not increase the risk of lung cancer, but future studies should evaluate exposure to hardwood dusts. Suggestive evidence for an inverse association may be attributable to the presence of endotoxin in the wood dust, but the lack of a dose-response relationship suggests a non-causal relationship.
 

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