That Dr Vladimir Zelenko story going around just doesn't sit right with me. That guy is saying he successfully treated 700 people with hydrochloriquine, but has no documented proof. It seems like a big scam
https://www.snopes.com/fact-check/zelenko-669-coronavirus-patients/
"
Zelenko’s claims, however, rest solely on taking him at his word: He has published no data, described no study design, and reported no analysis."
also, that guy with that huge beard is around almost 700 patients? There is no way a ventilator could protect his face. I have seen the video that shows doctors preparing for interaction with patients and they might as well be the spooks from the movie E.T. dressed in full body suits