MR.PRO 0.2 HEX AIRBRUSHMR. PRO 0. 2 HEX AIRBRUSH Features Dual air constriction chambers: The two stage air compression design produces the softest atomization finish. Improvement to the production of nozzle and needle: How the geometry of the nozzle and needle relate to each other, plus the precision of the craftsmanship, as well as how these geometric factors affect the aerodynamic when the needle is pulled back, all of these will determine if an airbrush can produce