I don't think it would work. I'm sure it will not increase the oxygen in the blood too much. Usually, the blood is transporting more than 95% of the maximal capacity https://en.wikipedia.org/wiki/Oxygen_saturation_(medicine)

Also, breathing pure oxygen for too much time without medical supervision is dangerous https://www.webmd.com/balance/features/rise-of-oxygen-bars (The effect is somewhat similar to put your face in a jar with diluted bleach.)