Hi Cody, I used it for about 4 hrs today with a few short breaks but some stretches lasting at least an hour. I did frame sanding with an orbital sander and endcap prep with an angle grinder with wire wheels and a drill with a wire brush. It was not too hot out today - about 84 degrees. The good news it did not have any fogging. The downside is it doesn't work well with glasses but I think I can get used to . The mask and painters head sock had a bunch of soot on them. Here's a shot of the filter after today. Definitely some soot. These endcaps had really baked on crude. I can see why the gold standard is media blasting.Let us know how that works with fogging on the inside of the mask. I prefer the one without the built in masks because once I get hot and really sweaty, they always seem to fog up.
