Yesterday and today - I spent about 4 hours each day cutting 2 truck loads 4 total. From 9am to noon or so. For the most part - it was steady cutting - resting the saw to load the truck and then sharpening the chain and then back at it. That worked great. However, after a shower - I could still smell the saw, today too. The two stroke smoke CAN'T be good for you. Can't make that smell go away in my nose and lungs. I was in Tractor Supply and right there with the chain saws, they had those mask the painters wear when they spray paint. Does anyone wear one of these? - or maybe they are just out there for those who suffer alergies this time of year? Probably wouldn't make a difference and would be a major pain to work with. Some guys love that 2 stroke smoke. I'm not a fan of it. My nose runs like a faucet and my throat is raw from the smell. I'm burning synthetic. I guess the smell is just part of it.