Having spent some of yesterday screening wood chippings for the compost and then much of the evening and today coughing, I'm starting to think it would be good to preserve what's left of my lung capacity. I've begun looking at masks and fresh air systems online. One drawback is that I have a beard (getting longer and scragglier by the moment.) I'd like to use a mask for painting, welding and possibly even dusty yard work. Anyone have experience with these systems or others? Eastwood sells units with pumps and masks but they're pretty pricey. Maybe I don't need the pump for the dust work, so maybe two different masks? I did see an Instructable recently on creating a beard-sealing mask but it was a little cumbersome. Any ideas?