Emergency O2 tanks shouldn't be pure O2

[CaptainBravo]

yes, but add a toggle to the top left like a jetpack has for the valve(and you'd still need to hold it in your hand to change the air setting maybe idk?!). i just find it weird that i can fuck around with the settings for a jetpack on my back but can't toggle a valve on my goddamn belt because my 2d spaceman was born stupid.