most people tend not to care about stuff until whatever creates issues for them. a guy i know stopped by the other day as i was running the drill press and asked me "do you really need to be wearing a respirator ? its only wood.
id rather buy new filters than have this stuff in my body or clean it out of me nose at night.
GM workers built full size body shapes out of wood and clay to refine body detail from drawings. They all developed same health problems after about 20 years of this from wood dust and or fumes. Foggy memory from something saw 20 years ago. This cluster was only discovered because of full health care and good record keeping.
Here is are results on subject from search. http://www.mendeley.com/research/can...ong-mormons-1/ http://onlinelibrary.wiley.com/doi/1...50503/abstract