The greenest of green products using an ON-BOARD Water Fuel Cell that greatly reduces or eliminates Toxic Exhaust Gas Emissions in gasoline and diesel fuel burning vehicles. Also Improved Fuel Economy gains of 20 to 50% or more reported by users. QUALIFIES FOR IRS TAX CREDITS. See HH2® HYDROGEN WATER FUEL CELL LA AUTO SHOW BOOTH K-523 KENTIA HALL(LOWER LEVEL UNDER SOUTH HALL).