Stillsuit (Subnautica)

The Stillsuit is a piece of equipment and upgrade for the Dive Suit. It can be crafted using the Fabricator. Previously, the player had to use the Modification Station to upgrade the dive suit into the Stillsuit.

The Stillsuit takes up four slots in the player's Inventory.

Uses
The Stillsuit conserves and filters the player's bodily fluids, resulting in drinkable Reclaimed Water being added to the inventory. This reduces the overall H2O loss by 75%. A notification pops up whenever the Stillsuit has reclaimed some reclaimed water. The Stillsuit produces around two reclaimed water within one day.

Trivia

 * There is a running joke where, upon equipping the suit, the female A.I. will inquire: "To chemically neutralize residual odors & bodily fluids before reingestion, please press the activation button in the next three seconds... You have chosen not to activate chemical taste neutralization. Thank you and have a nice day." The joke being that it will taste like exerted mix of moistures including sweat and urine which cannot be changed and therefore no actual button exists.
 * The name and function comes from Frank Herbert's 1965 novel Dune. The stillsuit is the technology of inhabitants of an arid desert planet who use the suit to desalinate and reclaim body moisture and even process waste.