Oxygen (bottles, mask and regulator) on Everest

Also called: Oxygen system, Oxygen bottles, Oxygen cylinder, Oxygen mask and regulator, Supplemental oxygen

What it is for

Bottled oxygen, a mask and a regulator, used by most climbers above about 7,000 metres on Everest. It makes the thin air easier to breathe and reduces the risk of frostbite.

What Everest asks for

Standard
Your operator's: ask how many bottles per client, the flow rate on summit day, and whether the mask and regulator are rented or included

Other mountains