Does anyone have any experience with the Airshield face mask/dust filter
from Trend Routing? I'm considering one but don't know much about them. I
see that they have a 70db fan in them, and I worried that it would be pretty
noisy. What other options should I consider? I have seen the Triton and 3M
(very pricey) but only want to buy one, what do you use/recommend?
Thanks
Larry