We spray alot of solvent based finishes(laquer pre cat, conversion varnish ect) and have done so for about four years now (5-6 days a week 3-4 hrs a day). Of course theres ventilation and exhaust in the spray room and 95% of the time a respirator is used. But I was wondering if anyone has personal experience with the health effects after prolonged use (years) of this stuff? Cancer? Respitory problems? Are ya just a lil dumber than you used to be lol? Anyway, any info would be great. Thanks!