Among Us

looks like they advertising some sick drip

in the case of sabotage, head to the reactor before we crash

Probably showing what equipment can be found in that locker/panel.

Serious answer: it's an EPOS (Emergency Portable Oxygen System) It's a plastic bag you stick over your head. It's got a clear bit up front so you can see and a small oxygen tank in the back so you don't suffocate because you put a plastic bag on your head. It's used for crewmembers to be able to get to a place with system oxygen before passing out in the event of an emergency.