Take control of your air with a complete pumper package! MAC Air Pumpers build pressure and force a high volume of air into your helmet to keep you cool and keep the dust out. Lightweight construction, micron air filtering system, and waterproof connectors make the MAC Air the ultimate in helmet pumper systems. Kits include MAC Air Helmet Pumper, Variable Air Speed Controller and pumper hoses. MAC Air Pumpers feature a durable carbon fiber body, washable dry media air filter, high duty cycle life motor, and waterproof power connector, which are viable in a single and dual outlet configuration.