We do not make hho (hydroxy) producers because of very high risk of explosion, We are using latest technology of titanium and our device produces hydrogen and oxygen saperately. Well if the oxygen is kept out of the fuel mix then there will be no need for a EFIE, which in most countries are illegal, are very hard to get to work properly
titanium dry cell made for 35% to 75% fuel efficiency, we make fuel savers for all types of engines up to 10000cc