All our expeditions allocate a very generous supply of oxygen. In general, we plan to run an oxygen flow around 3L/min and 1L/min sleeping. With the advanced technology of our hyper-efficient, state-of-the-art oxygen masks, this is usually more than enough. We give you 3 bottles so, long story short is you don’t need extra oxygen.

However, if you can afford it we highly recommend it. Consider it cheap insurance. With the extra oxygen, you can run at a higher flow rate which will keep you warmer, allowing you to move faster on summit day and reducing your fatigue levels, all of which goes a long way towards keeping you safe.

Also, if you get delayed on the mountain for any reason (for instance in weather, or traffic) or miss thread your bottle which can periodically happen, having the extra Os may save your summit bid.

The extra oxygen option buys an additional bottle delivered to the upper mountain (we will discuss strategy on how to best use this extra oxygen). With the extra Os you can run high flow (4 – 5L/min) throughout summit day and start oxygen at Camp 2 (vs Camp 3 on the standard allocation)

*Please note, extra oxygen is non-refundable and non-transferable*