Change the orange air hose to the blue one...because the orange one is hooked to the oiler for the air tools and I don't want any oil in the primer. Put on the martian costume. I thought the repirator was on tight enough. It wasn't. When I finished, I had green primer on my nose around the edges of the respirator...a sure sign that there was air flow there. Next morning I felt like I had drunk a bottle of Jack Daniels...it took me until noon to remember my name. The respirator will be tighter next time.