Might it be appropriate if someone in the press ask if Mister Biden uses supplemental O2?
In my many years of experience with elders getting O2, I’ve never seen strap lines like that.
With someone that elderly, their skin has almost zero elasticity. Anything strapped to his head is going to be there a while. It’s also true if they are dehydrated.
My understanding is that CPAP needs to have the pressure manually titrated to the correct level to open the air passages. APAP attempts to automate the titration process to get the pressure right. If I go that direction, I'll have to see what works best. My sister is well ahead of me with CPAP devices in use for many years.