Oxygen Masks behave similar to an exosuit. Duplicants put them on at an Oxygen Mask Checkpoint if one is available at an Oxygen Mask Dock. Oxygen Masks are crafted at a …

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Jan 9, 2023 · I use them when I know they're going to be working underwater or in low oxygen environments. It's better than setting up diffusers everywhere or watching them run to oxygen …

Dec 13, 2025 · The oxygen mask only holds 20kg of oxygen, which is nearly four times less than the 75 that an atmo suit holds. Because of this, dupes can only last 200 seconds in a gas …

How to obtain Oxygen Mask and how to use Oxygen Mask.

Oxygen Mask Checkpoint prohibits Duplicants from passing without an Oxygen Mask. Oxygen Mask Docks must be built adjacent to the checkpoint and on the opposite side the arrow points …

Jan 2, 2023 · Oxygen Mask is an early game alternative, it requires materials that are readily available from the beginning of the game vs the Exosuit which needs Reed Fiber and Refined …