I too, agree with Willys. I've got two old Craftsman suction guns - one for primer and one for finish coat application. While base-coat-clear-coat systems can't be beat for ease of application, they are most generally an acrylic urethane based product. If you can smell this stuff while you're applying it, chances are, you're either killing brain cells or yourself, or both. A full hood and filtered outside air source should be used in conjunction with any automotive finish product. It's even more important if you're dealing with acrylic urethanes, theyBnasty.