Fresh Air for Painting

I've started assembling things I'll need to paint. Here are the two main items for a supplied air system to save me from breathing some of the hazardous to your health chemicals in modern paint. The mask is surplus fire fighter equipment. It comes with a regulator and hose and belt. I already have a filter and all I need now is the air line.

The air pump is a Gast rotary carbon vane pump commonly used in high dollar supplied air systems.