Amaircare XR-100 Auto Air Filter Purifier Cleaner, Healthier Air for Car or Truck or Smaller Office. The Amaircare XR-100 air filtration systems are auto accessories that mount on car seat backs or chair backs to purify air in automobiles, hotel rooms or offices. Sturdy steel air purifiers feature 3 stage air filters that remove particulates, odors and VOC's (volatile organic compounds) such as cigarette smoke, exhaust fumes, colognes and perfumes. An air filter chosen by sales and real estate professionals, truckers and delivery people as motorists wanting cleaner air to breathe. in. A billion people breathe smog, sulfur dioxide, carbon monoxide and other toxic pollutants every day. in. Sources: UN, World Resource Institute, World Wildlife Fund, World Watch Institute, Business Week Magazine The XR-100 is helpful for asthma and allergy sufferers as it filters out most asthma and allergy triggers. This compact auto accessory has a three-state filtration process that circulates and cleans polluted air. The Amaircare XR-100 Three Stage Filtration Process: Air is drawn into the top of the unit and filters through a three-stage filter cartridge. Purified air is then discharged in all directions through the screened opening around the circumference of the unit. Large particles, odors: Activated carbon 200% impregnated non-woven, fire retardant, polyester filter media.