This mask will mix with the world atmosphere but filter out the gasses based on the filters in its two slots.

Description

Gas Mask
Properties
Paintable	yes
Recipes
Tool Manufactory	2g Steel, 1g Silicon
Logic
Item Hash	1716878560
Item Name	ItemGasMask
Logic Classes	SlotClass.Helmet SortingClass.Clothing
	v; t; e;

The Gas Mask is a helmet-slot item that allows the wearer to breathe in toxic atmospheres by filtering out specific gases before they reach the lungs. Unlike a Space Helmet, it draws air directly from the surrounding environment rather than a dedicated air tank, making it well suited to environments that have breathable air contaminated with specific hazardous gases.

Despite not being a pressurized helmet, it shares the same suit requirement and flush behavior as one.

Usage

Filtering

Insert up to two Gas Filters into the mask's slots to specify which gases to remove. Each tick the mask equalizes the surrounding world atmosphere into its internal pocket, then strips out any gases matching the installed filters. The filtered gases are expelled back into the surrounding atmosphere rather than stored.

Filters degrade only when they actually remove gas.

Suit requirement

The mask only delivers filtered air to the wearer's lungs when a suit is also equipped. Without a suit, the wearer breathes unfiltered world atmosphere directly, as if the mask were not present.

Flush

The Flush interaction purges the mask's internal atmosphere, the suit's internal atmosphere, and the wearer's lung atmosphere simultaneously, expelling all contents into the surrounding environment. This is useful after a suit breach or after removing and reequipping the suit, as the lung atmosphere may still contain contaminants absorbed while unprotected.

Notes

The Gas Mask has no built-in light, unlike the Hard Hat and Headlamp.
Caution: The Gas Mask is not a pressure suit. It provides no protection against low-pressure or vacuum environments.

Slots

Slot Name	Type	Index
Filter 1	GasFilter	0
Filter 2	GasFilter	1