How much oxygen does it take to survive on the moon?

Humans require about 550 liters of oxygen per day to survive, which is roughly equivalent to 2.5 kg (5.5 lbs) of oxygen. However, the Moon has no atmosphere, so any survival would require bringing your own oxygen supply. Life support systems, such as those used in space missions, would need to provide a continuous supply of oxygen for astronauts to survive. Therefore, oxygen usage on the Moon would depend on the duration of stay and the efficiency of the life support systems in place.