This IS very important , I have seen lots of turners not using any personal respiratory equipment especially on youtube.
I now keep my headset and filter equipment on
ALL the time I am in my workshop . The fan unit is on a belt behind me .
This is a result of about 15 hours since I last changed the pre filters ( The filter unit has 2 installed) . The photo show 1 new and one old used filter , It was worse than seen but I dropped it on the way back to the house and a fair proportion of dust came of the filter
This IS the evidence that we should all take this seriously
No P.R.E and all this lot ends up in your lungs