After the Oracle capsize all the teams worked together to address and improve a multi-level safety and recovery protocol. You would guess it would address helmets, portable compressed air, chase boats with doctors, etc.
But, I have yet to find a picture or video of the Artemis guys wearing spare air. Many pictures and video of the team in April where there is no spare air visible here, , here, here and here.

Very obvious that Oracle is wearing them. Does anybody know for sure if Artemis was wearing spare air or any type of portable air system yesterday?