You need to use an air fead mask as nothing else is safe for 2K spraying
the conpressor must be well away from the spray area so it is not sucking in the paint fumes.
I always let all the air out of the conpressor and let it recharge a couple of times to flush it out and let it stand outside in the garden while I am spraying
I'm sure this anoys the nieghbours but I only paint very occasionally
You also need a good water trap/filter and pressure regulator.
It may be hard to justify the cost but if you want to be around for a few more years don't take the risk.We all know people who just use a normal paint mask but they will pay for it in the end.
CheeRS Tim.