Toyota Mirai - Fuel Cell Electric Vehicle (FCEV) Mirai combines hydrogen with oxygen from the outside air to generate power-without creating emissions. Hydrogen Air = Electricity The only by-product is water. Mirai’s hydrogen fuel tanks have been rigorously tested. If the hydrogen sensors detect a leak or a collision, the hydrogen tank valves will automatically close to prevent more hydrogen from escaping while any hydrogen that is leaked will safely return to the atmosphere. #hydrogen #mirai #t