If you don't collapse and die after the first 15 minutes of spraying, you'll probably be okay----Seriously though, a charcoal cannister type mask should keep you safe while spraying any of the custom finishes. Make sure that the mask fits your face well and don't be afraid to pop in some new charcoal cannisters if you find it hard to draw air thru the mask or start to "taste" the paint while you are spraying. It is also a good idea to wear something with long sleeves so that you avoid a lot of contact between the paint mist and your skin.