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
Stacks	No
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

Logic

Slots

All slot logic parameters are read-only.

Parameter	Slot Indices
Occupied	0, 1
OccupantHash	0, 1
Quantity	0, 1
MaxQuantity	0, 1
Damage	0, 1
Class	0, 1
ReferenceId	0, 1
FilterType	0, 1

Data Parameters

These are all parameters that can be written with a Logic Writer, Batch Writer, or Integrated Circuit (IC10), and can be read with a Logic Reader, Batch Reader, or Integrated Circuit (IC10).

Click here to see/hide all the data network properties

Parameter Name	Data Type	Access	Value
Combustion	Boolean	Read	0 or 1	Whether combustion is occurring in the Gas Mask's atmosphere.
Flush	Boolean	Write		Write 1 to flush the Gas Mask's internal atmosphere.
Pressure	Float	Read	kPa	The current pressure of the Gas Mask's atmosphere.
RatioCarbonDioxide	Float	Read	0.0 to 1.0	The ratio of Carbon Dioxide in the Gas Mask's atmosphere.
RatioHelium	Float	Read	0.0 to 1.0	The ratio of Helium in the Gas Mask's atmosphere.
RatioHydrazine	Float	Read	0.0 to 1.0	The ratio of Hydrazine in the Gas Mask's atmosphere.
RatioHydrochloricAcid	Float	Read	0.0 to 1.0	The ratio of Hydrochloric Acid in the Gas Mask's atmosphere.
RatioHydrogen	Float	Read	0.0 to 1.0	The ratio of Hydrogen in the Gas Mask's atmosphere.
RatioLiquidAlcohol	Float	Read	0.0 to 1.0	The ratio of Liquid Alcohol in the Gas Mask's atmosphere.
RatioLiquidCarbonDioxide	Float	Read	0.0 to 1.0	The ratio of Liquid Carbon Dioxide in the Gas Mask's atmosphere.
RatioLiquidHydrazine	Float	Read	0.0 to 1.0	The ratio of Liquid Hydrazine in the Gas Mask's atmosphere.
RatioLiquidHydrochloricAcid	Float	Read	0.0 to 1.0	The ratio of Liquid Hydrochloric Acid in the Gas Mask's atmosphere.
RatioLiquidHydrogen	Float	Read	0.0 to 1.0	The ratio of Liquid Hydrogen in the Gas Mask's atmosphere.
RatioLiquidMethane	Float	Read	0.0 to 1.0	The ratio of Liquid Methane in the Gas Mask's atmosphere.
RatioLiquidNitrogen	Float	Read	0.0 to 1.0	The ratio of Liquid Nitrogen in the Gas Mask's atmosphere.
RatioLiquidNitrousOxide	Float	Read	0.0 to 1.0	The ratio of Liquid Nitrous Oxide in the Gas Mask's atmosphere.
RatioLiquidOxygen	Float	Read	0.0 to 1.0	The ratio of Liquid Oxygen in the Gas Mask's atmosphere.
RatioLiquidOzone	Float	Read	0.0 to 1.0	The ratio of Liquid Ozone in the Gas Mask's atmosphere.
RatioLiquidPollutant	Float	Read	0.0 to 1.0	The ratio of Liquid Pollutant in the Gas Mask's atmosphere.
RatioLiquidSilanol	Float	Read	0.0 to 1.0	The ratio of Liquid Silanol in the Gas Mask's atmosphere.
RatioLiquidSodiumChloride	Float	Read	0.0 to 1.0	The ratio of Liquid Sodium Chloride in the Gas Mask's atmosphere.
RatioMethane	Float	Read	0.0 to 1.0	The ratio of Methane in the Gas Mask's atmosphere.
RatioNitrogen	Float	Read	0.0 to 1.0	The ratio of Nitrogen in the Gas Mask's atmosphere.
RatioNitrousOxide	Float	Read	0.0 to 1.0	The ratio of Nitrous Oxide in the Gas Mask's atmosphere.
RatioOxygen	Float	Read	0.0 to 1.0	The ratio of Oxygen in the Gas Mask's atmosphere.
RatioOzone	Float	Read	0.0 to 1.0	The ratio of Ozone in the Gas Mask's atmosphere.
RatioPollutant	Float	Read	0.0 to 1.0	The ratio of Pollutant in the Gas Mask's atmosphere.
RatioPollutedWater	Float	Read	0.0 to 1.0	The ratio of Polluted Water in the Gas Mask's atmosphere.
RatioSilanol	Float	Read	0.0 to 1.0	The ratio of Silanol in the Gas Mask's atmosphere.
RatioSteam	Float	Read	0.0 to 1.0	The ratio of Steam in the Gas Mask's atmosphere.
RatioWater	Float	Read	0.0 to 1.0	The ratio of Water in the Gas Mask's atmosphere.
ReferenceId	Integer	Read		Unique Reference Identifier for this object.
SoundAlert	Integer	Read Write	≥ 0	Index of the active sound alert.
Temperature	Float	Read	Kelvin	The current temperature of the Gas Mask's atmosphere.
TotalMoles	Float	Read	mol	Total moles of gas in the Gas Mask's atmosphere.
Volume	Integer	Read Write	0 to 100	Speaker volume for sound alerts.