However, many shops will prefer to use the 2-stage filter 444 (92296) without activated charcoal. If, in this case, the technician does not have suitable filtration for breathing air, the use of the air carbon regulator (1000182) should be considered, always with the aim of eliminating all traces of contaminants in the air, while controlling the air flow to the hood and gun. Its integrated activated carbon cartridge therefore provides the painter with perfectly purified breathing air.