Gas mask

The gas mask is a piece of apparel added by the Biotech DLC.

Acquisition

Gas masks can be crafted at a Machining table once the Machining research project has been completed. They require 20 Steel, 20 Chemfuel and 6,000 ticks (1.67 mins) of work.

Summary

Gas masks increase Toxic Environment Resistance by +80%, causing tox gas, toxic fallout, rot stink, and pollution to be 20% effective. It does not protect from diseases, which are not contagious between pawns in RimWorld, nor does it prevent toxic buildup from attacks such as the cobra's bite. Quality does not affect this resistance.

The gas mask does not count as clothing for pawns with the nudist trait or with pro-nudity ideoligions. Despite this, it does still count as clothing coverage for pawns who prefer not being naked

Armor and insulation bug

Gas masks have armor and insulation values defined, but only as stuff effect multipliers. These require a material to complete the equation and actually produce a final value. As the gas mask is not stuffable, this is impossible to see in the game.

This results in the gas mask offering no armor or insulation at all.

Analysis

For many purposes, such as against rot stink, a face mask's 50% toxic resistance is sufficient. As face masks don't cover the head, simple helmets and flak helmets can be used alongside it. That said, unlike the face mask, the gas mask prevents the immediate effects of tox gas on sight, breathing, and pain, in addition to the effect of reducing toxic buildup more than a face mask.

The gas mask offers no absolutely no protection. The only positive effect of quality is a lowered deterioration rate.

Stats table

Gas mask	Sharp	Blunt	Heat	HP	Insulation - Cold	Insulation - Heat	Market Value
Quality	Sharp	Blunt	Heat	HP	Insulation - Cold	Insulation - Heat	Market Value
Awful	10.8%	18%	0%	80	-1.2 °C (-2.2 °F)	+0 °C (0 °F)	53
Poor	14.4%	24%	0%	80	-1.35 °C (-2.4 °F)	+0 °C (0 °F)	80
Normal	18%	30%	0%	80	-1.5 °C (-2.7 °F)	+0 °C (0 °F)	106
Good	20.7%	34.5%	0%	80	-1.65 °C (-3 °F)	+0 °C (0 °F)	133
Excellent	23.4%	39%	0%	80	-1.8 °C (-3.2 °F)	+0 °C (0 °F)	159
Masterwork	26.1%	43.5%	0%	80	-2.25 °C (-4.1 °F)	+0 °C (0 °F)	265
Legendary	32.4%	54%	0%	80	-2.7 °C (-4.9 °F)	+0 °C (0 °F)	530

^{For the full effects of qualities, see Quality.}

Version history

Biotech DLC Release - Added.

Apparel

Torso | Clothing: Button-down shirt • T-shirt (Kid ) • Tribalwear (Kid )
: Corset • Eltex shirt • Eltex vest • Formal vest • Formal shirt
: Slave collar
: Sash • Kid romper
Armor: Flak vest
Legs | Clothing: Pants (Kid )
Armor: Flak pants
Shell | Clothing: Duster • Jacket • Parka (Kid ) • Robe
: Cape • Eltex robe • Prestige robe
: Burka • Slave body strap
: Heavy bandolier
: Lab coat
Armor: Flak jacket • Marine armor (Prestige , Grenadier ) • Plate armor • Recon armor (Prestige , Locust , Mechlord ) • Cataphract armor (Prestige , Phoenix )
Head | Clothing: Bowler hat • Cowboy hat • Hood • Psychic foil helmet • Tuque • Tribal headdress • Veil • War mask
: Beret • Coronet • Crown • Eltex helmet • Eltex skullcap • Ladies hat • Stellic crown • Top hat
: Authority cap • Blindfold • Broadwrap • Flophat • Headwrap • Shadecone • Slicecap • Tailcap • Torture crown • Visage mask
: Airwire headset • Array headset • Gas mask • Face mask
: Ceremonial hood • Ritual mask
Armor: Flak helmet • Marine helmet (Prestige/Samurai helmet ) • Recon helmet (Prestige , Mechlord ) • Simple helmet (Kid ) • Cataphract helmet (Prestige ) • Gunlink • Integrator headset • Mechcommander helmet