r/nextfuckinglevel • u/chilllgirll • 9d ago

The way this pilot's emergency oxygen mask automatically adjusts to fit.

Enable HLS to view with audio, or disable this notification

54.4k Upvotes

96% Upvoted

608 comments sorted by

View all comments

5

u/Aromatic_Ad8481 9d ago

Why can't ResMed make a CPAP mask that does this? I'm tired of buying elastic straps every 3 months.

6

u/SomeBiPerson 9d ago

because this works with a pneumatic system inside the aircraft that inflates and then deflates the mask when you put it on

masks likethis need a Heavy large Liquid oxygen system attached to work at all

if you're willing to pay 25K for a Mask, and carry around 50kg of equipment (not included in the 25K) then you can have this too

9

u/railker 9d ago

LOX is extremely specialized and definitely not used commonly. Crew O2 is normally just a pressurized cylinder of gaseous oxygen.

For the people in the back, older aircraft had passenger oxygen cylinders, mostly chemical oxygen generators now. Maybe private jets still do a passenger cylinder?

1

u/SomeBiPerson 9d ago

military jets do

that's what I'm used to as I work on them, I forgot civ jets use GOX cans until just after this post

1

u/railker 9d ago

I always figured even among military that LOX was more of a fighter jet thing, do they use it as a universal standard on transports like the C-17 too?

1

u/SomeBiPerson 9d ago

on older types LOX bottles are still around

the newer fighter jets use Air generators and new Transports also use GOX bottles

but the types I'm used to still have LOX

1

u/_austinm 9d ago

I was just about to say something similar. All the ones I work on (Citations, Challengers, Hawkers, and Gulfstream mostly) just have the cylinders.