I was out in it for two hours straight today. Pumping out some tanks someone cross-dropped in. I could feel it in my throat after I got back inside away from the nasty air. It's just so bad outside you really don't want to be out. When the fires happen in California and Oregon this is what happens. I bet some of it might be from fires from my state too, but from the west, it gets pushed over the hill. Yuck!