They require the purchase of a portable air compressor in addition to other equipment.
On display is a large air compressor made in the 1950s.
Typical contaminants are exhaust fumes from lorries parked outside the air compressor intake, flux fumes, halogenated solvents and oil from unsuitable compressors.
Blow out all return jet pipes using an air compressor or shop vac.
Depending on which gun you buy, you may need additional extension cords for the electric guns or the air compressor if you get the pneumatic gun.