My new job is my 6th airline, all in different countries but my first in the US. Its been an eye opener how the FAA mandate certain things compared to others. Not as progressive as i expected.
Its the first time i have seen the use of oxy masks in flight (except for oz in the old days) and it appears to me that the masks are getting beaten up by constant use. Last week a crew had the hose come off the mask during removal and flailed all over the cockpit.