diff --git a/code/game/objects/effects/effect_system/effects_smoke.dm b/code/game/objects/effects/effect_system/effects_smoke.dm
index b7636ad427d..634babed1f1 100644
--- a/code/game/objects/effects/effect_system/effects_smoke.dm
+++ b/code/game/objects/effects/effect_system/effects_smoke.dm
@@ -393,88 +393,3 @@
 			spawn(150+rand(10,30))
 				smoke.delete()
 				src.total_smoke--
-
-/////////////////////////////////////////////
-// Mustard Gas
-/////////////////////////////////////////////
-
-/obj/effect/effect/mustard_gas
-	name = "mustard gas"
-	icon_state = "mustard"
-	opacity = 1
-	anchored = 0.0
-	mouse_opacity = 0
-	var/amount = 6.0
-
-/obj/effect/effect/mustard_gas/New()
-	..()
-	spawn(100)
-		qdel(src)
-	return
-
-/obj/effect/effect/mustard_gas/Move()
-	..()
-	for(var/mob/living/carbon/human/R in get_turf(src))
-		if(R.internal != null && usr.wear_mask && (R.wear_mask.flags & AIRTIGHT) && R.wear_suit != null && !istype(R.wear_suit, /obj/item/clothing/suit/storage/labcoat) && !istype(R.wear_suit, /obj/item/clothing/suit/straight_jacket) && !istype(R.wear_suit, /obj/item/clothing/suit/straight_jacket && !istype(R.wear_suit, /obj/item/clothing/suit/armor)))
-		else
-			R.adjustFireLoss(0.75)
-			if(R.coughedtime != 1)
-				R.coughedtime = 1
-				R.emote("gasp")
-				spawn(20)
-					R.coughedtime = 0
-			R.updatehealth()
-	return
-
-/obj/effect/effect/mustard_gas/Crossed(mob/living/carbon/human/R)
-	..()
-	if(ishuman(R))
-		if(R.internal != null && usr.wear_mask && (R.wear_mask.flags & AIRTIGHT) && R.wear_suit != null && !istype(R.wear_suit, /obj/item/clothing/suit/storage/labcoat) && !istype(R.wear_suit, /obj/item/clothing/suit/straight_jacket) && !istype(R.wear_suit, /obj/item/clothing/suit/straight_jacket && !istype(R.wear_suit, /obj/item/clothing/suit/armor)))
-			return
-		R.adjustFireLoss(0.75)
-		if(R.coughedtime != 1)
-			R.coughedtime = 1
-			R.emote("gasp")
-			spawn(20)
-				R.coughedtime = 0
-		R.updatehealth()
-	return
-
-/datum/effect/system/mustard_gas_spread
-	var/total_smoke = 0 // To stop it being spammed and lagging!
-	var/direction
-
-/datum/effect/system/mustard_gas_spread/set_up(n = 5, c = 0, loca, direct)
-	if(n > 20)
-		n = 20
-	number = n
-	cardinals = c
-	if(istype(loca, /turf/))
-		location = loca
-	else
-		location = get_turf(loca)
-	if(direct)
-		direction = direct
-
-/datum/effect/system/mustard_gas_spread/start()
-	var/i = 0
-	for(i=0, i<src.number, i++)
-		if(src.total_smoke > 20)
-			return
-		spawn(0)
-			if(holder)
-				src.location = get_turf(holder)
-			var/obj/effect/effect/mustard_gas/smoke = new /obj/effect/effect/mustard_gas(src.location)
-			src.total_smoke++
-			var/direction = src.direction
-			if(!direction)
-				if(src.cardinals)
-					direction = pick(cardinal)
-				else
-					direction = pick(alldirs)
-			for(i=0, i<pick(0,1,1,1,2,2,2,3), i++)
-				sleep(10)
-				step(smoke,direction)
-			spawn(100)
-				qdel(smoke)
-				src.total_smoke--