Oxygen is vital in combustion processes such as the burning of fuels. All combustion reactions are also samples of redox reactions. A combustion reaction occurs any time a compound reacts with oxygen to build warmth. One case in point will be the combustion of octane, the principle element of gasoline: https://cristianhfcnz.myparisblog.com/37511981/the-basic-principles-of-hyperbaric-oxygen-therapy-chamber-cost