4 ms·

I don’t know if this applies on the surface, but divers don’t use pure oxygen on dives because of oxygen toxicity.

• edwardsdl 3y ago
  Sorry if this is pedantic, but we do actually use it for decompression, though usually no deeper than 20ft.
  • nanidin 3y ago
    Ahh good point that I forgot. I certified as a rescue scuba diver but it has been almost 10 years now!