I need to replace my current dust mask, not working well. A local turner told me he had tried the Elipse P100 dust mask and it worked well with his glasses. Anyone out there have experience with it? In the video at Highland, they show that it fits under a face shield, but don't show him turning. I'm wondering, with the straight-out-front exhale valve, does the face shield steam up? PS: I have a powered respirator, just looking for a new dust mask.