Elon Musk recently responded to a tweet claiming "ventilators nearly killed all COVID patients"

He tweeted:

"I tried telling people this! When I talked to doctors in Wuhan after the first wave hit China, their top recommendation was to avoid using intubated ventilators for extended periods at 100% O2, as it damages the lungs.

I got the 'you’re not a doctor' bullshit from utter idiots in response. Yeah, I’m not a doctor, but I do oversee the design of spaceships with life support systems that keep astronauts alive and healthy in a vacuum!"