re: Dust collector question

I am very surprised with the statement “….low micron DC filtering is over blown.” The very fine dust particles are the ones which hang in the air a long time and can be drawn deep into the lungs. My intent is not to be an alarmist but breathing the small particles is not good for anyone and especially those getting older. A 30 micron bag is putting out huge amounts of the small partcles. IMHO everyone should do the best possible to filter out the small particles. If you can not have a good dust collection system, then a dust mask. While some maybe able to breath this stuff with no apparent effect, it likely will catch up with you.