diff --git a/aquila/aquila.dm b/aquila/aquila.dm
index 31595aaefdc..d2a229c7724 100644
--- a/aquila/aquila.dm
+++ b/aquila/aquila.dm
@@ -21,6 +21,7 @@
 #include "code\controllers\subsystem\vote.dm"
 #include "code\datum\wires\wires_jukebox.dm"
 #include "code\datums\components\nanites.dm"
+#include "code\datums\components\rot.dm"
 #include "code\datums\diseases\advance\symptoms\fleshgrowth.dm"
 #include "code\datums\diseases\transformation.dm"
 #include "code\datums\ai_laws.dm"
@@ -105,6 +106,8 @@
 #include "code\modules\antagonists\demon\sins\greed.dm"
 #include "code\modules\antagonists\demon\sins\pride.dm"
 #include "code\modules\antagonists\demon\sins\wrath.dm"
+#include "code\modules\atmospherics\auxgm\gas_types.dm"
+#include "code\modules\atmospherics\machinery\portable\canister.dm"
 #include "code\modules\cargo\packs.dm"
 #include "code\modules\cargo\exports\large_objects.dm"
 #include "code\modules\client\verbs\input_box.dm"
@@ -124,6 +127,7 @@
 #include "code\modules\food_and_drinks\drinks\drinks.dm"
 #include "code\modules\food_and_drinks\food\snacks_pie.dm"
 #include "code\modules\food_and_drinks\recipes\drinks_recipes.dm"
+#include "code\modules\hydroponics\grown\misc.dm"
 #include "code\modules\metacoin\metacoin.dm"
 #include "code\modules\mining\equipment\mineral_scanner.dm"
 #include "code\modules\mining\machine_bluespaceminer.dm"
diff --git a/aquila/code/__DEFINES/reactions.dm b/aquila/code/__DEFINES/reactions.dm
new file mode 100644
index 00000000000..e5aacf6fcc7
--- /dev/null
+++ b/aquila/code/__DEFINES/reactions.dm
@@ -0,0 +1 @@
+#define MIASMA_RESEARCH_AMOUNT				40
diff --git a/aquila/code/datums/components/rot.dm b/aquila/code/datums/components/rot.dm
new file mode 100644
index 00000000000..cb195ea0f83
--- /dev/null
+++ b/aquila/code/datums/components/rot.dm
@@ -0,0 +1,66 @@
+/datum/component/rot
+	var/amount = 1
+
+/datum/component/rot/Initialize(new_amount)
+	if(!isatom(parent))
+		return COMPONENT_INCOMPATIBLE
+
+	if(new_amount)
+		amount = new_amount
+
+	START_PROCESSING(SSprocessing, src)
+
+/datum/component/rot/Destroy()
+	STOP_PROCESSING(SSprocessing, src)
+	return ..()
+
+/datum/component/rot/process(delta_time)
+	var/atom/A = parent
+
+	var/turf/open/T = get_turf(A)
+	if(!istype(T) || T.return_air().return_pressure() > (WARNING_HIGH_PRESSURE - 10))
+		return
+
+	var/datum/gas_mixture/stank = new
+	stank.set_moles(GAS_MIASMA, amount * delta_time)
+	stank.set_temperature(BODYTEMP_NORMAL) // otherwise we have gas below 2.7K which will break our lag generator
+	T.assume_air(stank)
+	T.air_update_turf()
+
+/datum/component/rot/corpse
+	amount = MIASMA_CORPSE_MOLES
+
+/datum/component/rot/corpse/Initialize()
+	if(!iscarbon(parent))
+		return COMPONENT_INCOMPATIBLE
+	. = ..()
+
+/datum/component/rot/corpse/process()
+	var/mob/living/carbon/C = parent
+	if(C == null) //can't delete what doesnt exist
+		return
+
+	if(C.stat != DEAD)
+		qdel(src)
+		return
+
+	// Wait a bit before decaying
+	if(world.time - C.timeofdeath < 2 MINUTES)
+		return
+
+	// Properly stored corpses shouldn't create miasma
+	if(istype(C.loc, /obj/structure/closet/crate/coffin)|| istype(C.loc, /obj/structure/closet/body_bag) || istype(C.loc, /obj/structure/bodycontainer))
+		return
+
+	// No decay if formaldehyde in corpse or when the corpse is charred
+	if(C.reagents.has_reagent(/datum/reagent/toxin/formaldehyde, 15) || HAS_TRAIT(C, TRAIT_HUSK))
+		return
+
+	// Also no decay if corpse chilled or not organic/undead
+	if(C.bodytemperature <= T0C-10 || (!(MOB_ORGANIC in C.mob_biotypes) && !(MOB_UNDEAD in C.mob_biotypes)))
+		return
+
+	..()
+
+/datum/component/rot/gibs
+	amount = MIASMA_GIBS_MOLES
diff --git a/aquila/code/modules/atmospherics/auxgm/gas_types.dm b/aquila/code/modules/atmospherics/auxgm/gas_types.dm
new file mode 100644
index 00000000000..698a6e402ae
--- /dev/null
+++ b/aquila/code/modules/atmospherics/auxgm/gas_types.dm
@@ -0,0 +1,7 @@
+/datum/gas/miasma
+	id = GAS_MIASMA
+	specific_heat = 20
+	fusion_power = 50
+	name = "Miasma"
+	gas_overlay = "miasma"
+	moles_visible = MOLES_GAS_VISIBLE * 60
diff --git a/aquila/code/modules/atmospherics/gasmixtures/reactions.dm b/aquila/code/modules/atmospherics/gasmixtures/reactions.dm
new file mode 100644
index 00000000000..2dd1a15c39b
--- /dev/null
+++ b/aquila/code/modules/atmospherics/gasmixtures/reactions.dm
@@ -0,0 +1,24 @@
+/datum/gas_reaction/miaster	//dry heat sterilization: clears out pathogens in the air
+	priority = -10 //after all the heating from fires etc. is done
+	name = "Dry Heat Sterilization"
+	id = "sterilization"
+
+/datum/gas_reaction/miaster/init_reqs()
+	min_requirements = list(
+		"TEMP" = FIRE_MINIMUM_TEMPERATURE_TO_EXIST+70,
+		GAS_MIASMA = MINIMUM_MOLE_COUNT
+	)
+
+/datum/gas_reaction/miaster/react(datum/gas_mixture/air, datum/holder)
+	// As the name says it, it needs to be dry
+	if(air.get_moles(GAS_H2O)/air.total_moles() > 0.1)
+		return
+
+	//Replace miasma with oxygen
+	var/cleaned_air = min(air.get_moles(GAS_MIASMA), 20 + (air.return_temperature() - FIRE_MINIMUM_TEMPERATURE_TO_EXIST - 70) / 20)
+	air.adjust_moles(GAS_MIASMA, -cleaned_air)
+	air.adjust_moles(GAS_O2, cleaned_air)
+
+	//Possibly burning a bit of organic matter through maillard reaction, so a *tiny* bit more heat would be understandable
+	air.set_temperature(air.return_temperature() + cleaned_air * 0.002)
+	SSresearch.science_tech.add_point_type(TECHWEB_POINT_TYPE_DEFAULT, cleaned_air*MIASMA_RESEARCH_AMOUNT)//Turns out the burning of miasma is kinda interesting to scientists
diff --git a/aquila/code/modules/atmospherics/machinery/portable/canister.dm b/aquila/code/modules/atmospherics/machinery/portable/canister.dm
new file mode 100644
index 00000000000..fce68b0adcc
--- /dev/null
+++ b/aquila/code/modules/atmospherics/machinery/portable/canister.dm
@@ -0,0 +1,7 @@
+/obj/machinery/portable_atmospherics/canister/miasma
+	name = "miasma canister"
+	desc = "Miasma. Makes you wish your nose was blocked."
+	gas_type = GAS_MIASMA
+	filled = 1
+	greyscale_config = /datum/greyscale_config/canister/double_stripe
+	greyscale_colors = "#009823#f7d5d3"
diff --git a/aquila/code/modules/hydroponics/grown/misc.dm b/aquila/code/modules/hydroponics/grown/misc.dm
new file mode 100644
index 00000000000..b3f979bcd75
--- /dev/null
+++ b/aquila/code/modules/hydroponics/grown/misc.dm
@@ -0,0 +1,32 @@
+// Corpse flower
+/obj/item/seeds/starthistle/corpse_flower
+	name = "pack of corpse flower seeds"
+	desc = "A species of plant that emits a horrible odor. The odor stops being produced in difficult atmospheric conditions."
+	icon_state = "seed-corpse-flower"
+	species = "corpse-flower"
+	plantname = "Corpse flower"
+	production = 2
+	growing_icon = 'icons/obj/hydroponics/growing_flowers.dmi'
+	genes = list()
+	mutatelist = list()
+
+/obj/item/seeds/starthistle/corpse_flower/pre_attack(obj/machinery/hydroponics/I)
+	if(istype(I, /obj/machinery/hydroponics))
+		if(!I.myseed)
+			START_PROCESSING(SSobj, src)
+	return ..()
+
+/obj/item/seeds/starthistle/corpse_flower/process(delta_time)
+	var/obj/machinery/hydroponics/parent = loc
+	if(parent.age < maturation) // Start a little before it blooms
+		return
+
+	var/turf/open/T = get_turf(parent)
+	if(abs(ONE_ATMOSPHERE - T.return_air().return_pressure()) > (potency/10 + 10)) // clouds can begin showing at around 50-60 potency in standard atmos
+		return
+
+	var/datum/gas_mixture/stank = new
+	stank.set_moles(GAS_MIASMA, (yield + 6)*3.5*MIASMA_CORPSE_MOLES*delta_time) // this process is only being called about 2/7 as much as corpses so this is 12-32 times a corpses
+	stank.set_temperature(T20C) // without this the room would eventually freeze and miasma mining would be easier
+	T.assume_air(stank)
+	T.air_update_turf()
diff --git a/code/__DEFINES/atmospherics.dm b/code/__DEFINES/atmospherics.dm
index 72ed8f4002c..5b0b2185d88 100644
--- a/code/__DEFINES/atmospherics.dm
+++ b/code/__DEFINES/atmospherics.dm
@@ -281,6 +281,7 @@
 #define GAS_PLUOXIUM			"pluox"
 #define GAS_CONSTRICTED_PLASMA  "constricted_plasma" //NSV13
 #define GAS_NUCLEIUM			"nucleium" //NSV13
+#define GAS_MIASMA				"miasma"
 
 #define GAS_FLAG_DANGEROUS		(1<<0)
 #define GAS_FLAG_BREATH_PROC	(1<<1)
@@ -321,6 +322,11 @@ GLOBAL_LIST_INIT(pipe_paint_colors, sortList(list(
 		"yellow" = rgb(255,198,0)
 )))
 
+//ROT MIASMA AQ EDIT START
+#define MIASMA_CORPSE_MOLES 0.02
+#define MIASMA_GIBS_MOLES 0.005
+//AQ EDIT END
+
 //PIPENET UPDATE STATUS
 #define PIPENET_UPDATE_STATUS_DORMANT 0
 #define PIPENET_UPDATE_STATUS_REACT_NEEDED 1
diff --git a/code/game/objects/effects/decals/cleanable/humans.dm b/code/game/objects/effects/decals/cleanable/humans.dm
index 7af87f03f32..927cdbc8033 100644
--- a/code/game/objects/effects/decals/cleanable/humans.dm
+++ b/code/game/objects/effects/decals/cleanable/humans.dm
@@ -73,7 +73,7 @@
 /obj/effect/decal/cleanable/blood/gibs/Initialize(mapload, list/datum/disease/diseases)
 	. = ..()
 	name = "rotten [name]"
-	//AddComponent(/datum/component/rot/gibs)
+	AddComponent(/datum/component/rot/gibs)//AQ EDIT
 	reagents.add_reagent(/datum/reagent/liquidgibs, 5)
 	RegisterSignal(src, COMSIG_MOVABLE_PIPE_EJECTING, PROC_REF(on_pipe_eject))
 
diff --git a/code/modules/atmospherics/machinery/airalarm.dm b/code/modules/atmospherics/machinery/airalarm.dm
index 2637c2d9825..dce99612d5e 100644
--- a/code/modules/atmospherics/machinery/airalarm.dm
+++ b/code/modules/atmospherics/machinery/airalarm.dm
@@ -93,6 +93,7 @@
 		GAS_O2			= new/datum/tlv(16, 19, 40, 50), // Partial pressure, kpa
 		GAS_N2			= new/datum/tlv(-1, -1, 1000, 1000),
 		GAS_CO2	= new/datum/tlv(-1, -1, 5, 10),
+		GAS_MIASMA			= new/datum/tlv/(-1, -1, 15, 30),//AQ EDIT
 		GAS_PLASMA			= new/datum/tlv/dangerous,
 		GAS_NITROUS	= new/datum/tlv/dangerous,
 		GAS_BZ				= new/datum/tlv/dangerous,
@@ -113,6 +114,7 @@
 		GAS_O2			= new/datum/tlv/no_checks,
 		GAS_N2			= new/datum/tlv/no_checks,
 		GAS_CO2	= new/datum/tlv/no_checks,
+		GAS_MIASMA			= new/datum/tlv/no_checks,//AQ EDIT
 		GAS_PLASMA			= new/datum/tlv/no_checks,
 		GAS_NITROUS	= new/datum/tlv/no_checks,
 		GAS_BZ				= new/datum/tlv/no_checks,
@@ -133,6 +135,7 @@
 		GAS_O2			= new/datum/tlv(16, 19, 135, 140), // Partial pressure, kpa
 		GAS_N2			= new/datum/tlv(-1, -1, 1000, 1000),
 		GAS_CO2	= new/datum/tlv(-1, -1, 5, 10),
+		GAS_MIASMA			= new/datum/tlv/(-1, -1, 2, 5),//AQ EDIT
 		GAS_PLASMA			= new/datum/tlv/dangerous,
 		GAS_NITROUS	= new/datum/tlv/dangerous,
 		GAS_BZ				= new/datum/tlv/dangerous,
@@ -537,6 +540,7 @@
 					"power" = 1,
 					"set_filters" = list(
 						GAS_CO2,
+						GAS_MIASMA,//AQ EDIT
 						GAS_PLASMA,
 						GAS_H2O,
 						GAS_HYPERNOB,
diff --git a/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm b/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm
index cc41313cbc3..0dc6221e5f9 100644
--- a/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm
+++ b/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm
@@ -255,7 +255,7 @@
 
 /obj/machinery/atmospherics/components/unary/thermomachine/freezer/on/coldroom/Initialize(mapload)
 	. = ..()
-	target_temperature = T0C-20
+	target_temperature = T0C-20//zatrzymuje Miasme
 
 /obj/machinery/atmospherics/components/unary/thermomachine/heater
 	icon_state = "heater"
diff --git a/code/modules/atmospherics/machinery/portable/canister.dm b/code/modules/atmospherics/machinery/portable/canister.dm
index 70b4ce40fa7..03041ae5fea 100644
--- a/code/modules/atmospherics/machinery/portable/canister.dm
+++ b/code/modules/atmospherics/machinery/portable/canister.dm
@@ -54,8 +54,9 @@
 		"stimulum" = /obj/machinery/portable_atmospherics/canister/stimulum,
 		"pluoxium" = /obj/machinery/portable_atmospherics/canister/pluoxium,
 		"caution" = /obj/machinery/portable_atmospherics/canister,
+		"miasma" = /obj/machinery/portable_atmospherics/canister/miasma,//AQ EDIT
 		"nucleium" = /obj/machinery/portable_atmospherics/canister/nucleium,	//NSV13
-		"constricted plasma" = /obj/machinery/portable_atmospherics/canister/constricted_plasma, //NSV13
+		"constricted plasma" = /obj/machinery/portable_atmospherics/canister/constricted_plasma //NSV13
 	)
 
 /obj/machinery/portable_atmospherics/canister/interact(mob/user)
diff --git a/code/modules/cargo/exports/large_objects.dm b/code/modules/cargo/exports/large_objects.dm
index a97e72efee7..e9258118e42 100644
--- a/code/modules/cargo/exports/large_objects.dm
+++ b/code/modules/cargo/exports/large_objects.dm
@@ -144,6 +144,7 @@
 	worth += C.air_contents.get_moles(GAS_BZ)*4
 	worth += C.air_contents.get_moles(GAS_STIMULUM)*100
 	worth += C.air_contents.get_moles(GAS_HYPERNOB)*1000
+	worth += C.air_contents.get_moles(GAS_MIASMA)*10//AQ EDIT
 	worth += C.air_contents.get_moles(GAS_TRITIUM)*5
 	worth += C.air_contents.get_moles(GAS_PLUOXIUM)*5
 	worth += C.air_contents.get_moles(GAS_CONSTRICTED_PLASMA)*2 //NSV13 - Constricted plasma export.
diff --git a/code/modules/hydroponics/grown/misc.dm b/code/modules/hydroponics/grown/misc.dm
index 91992d3ee39..62bc822383f 100644
--- a/code/modules/hydroponics/grown/misc.dm
+++ b/code/modules/hydroponics/grown/misc.dm
@@ -14,7 +14,7 @@
 	growthstages = 3
 	growing_icon = 'icons/obj/hydroponics/growing_flowers.dmi'
 	genes = list(/datum/plant_gene/trait/plant_type/weed_hardy)
-	mutatelist = list(/obj/item/seeds/galaxythistle)
+	mutatelist = list(/obj/item/seeds/starthistle/corpse_flower, /obj/item/seeds/galaxythistle)//AQ EDIT
 
 /obj/item/seeds/starthistle/harvest(mob/user)
 	var/obj/machinery/hydroponics/parent = loc
diff --git a/code/modules/mob/living/carbon/life.dm b/code/modules/mob/living/carbon/life.dm
index ff3da41caf4..61df0935466 100644
--- a/code/modules/mob/living/carbon/life.dm
+++ b/code/modules/mob/living/carbon/life.dm
@@ -49,6 +49,7 @@
 
 	if(stat == DEAD)
 		stop_sound_channel(CHANNEL_HEARTBEAT)
+		LoadComponent(/datum/component/rot/corpse)//AQ EDIT
 
 	//Updates the number of stored chemicals for changeling powers
 	if(hud_used?.lingchemdisplay && !isalien(src) && mind)
@@ -267,6 +268,46 @@
 		var/nitryl_partialpressure = (breath.get_moles(GAS_NITRYL)/breath.total_moles())*breath_pressure
 		adjustFireLoss(nitryl_partialpressure/4)
 
+	//MIASMA AQ EDIT START
+	if(breath.get_moles(GAS_MIASMA))
+		var/miasma_partialpressure = (breath.get_moles(GAS_MIASMA)/breath.total_moles())*breath_pressure
+
+		if(prob(1 * miasma_partialpressure))
+			var/datum/disease/advance/miasma_disease = new /datum/disease/advance/random(2,3)
+			miasma_disease.name = "Unknown"
+			ForceContractDisease(miasma_disease, TRUE, TRUE)
+
+		//Miasma side effects
+		switch(miasma_partialpressure)
+			if(0.25 to 5)
+				// At lower pp, give out a little warning
+				SEND_SIGNAL(src, COMSIG_CLEAR_MOOD_EVENT, "smell")
+				if(prob(5))
+					to_chat(src, "<span class='notice'>There is an unpleasant smell in the air.</span>")
+			if(5 to 20)
+				//At somewhat higher pp, warning becomes more obvious
+				if(prob(15))
+					to_chat(src, "<span class='warning'>You smell something horribly decayed inside this room.</span>")
+					SEND_SIGNAL(src, COMSIG_ADD_MOOD_EVENT, "smell", /datum/mood_event/disgust/bad_smell)
+			if(15 to 30)
+				//Small chance to vomit. By now, people have internals on anyway
+				if(prob(5))
+					to_chat(src, "<span class='warning'>The stench of rotting carcasses is unbearable!</span>")
+					SEND_SIGNAL(src, COMSIG_ADD_MOOD_EVENT, "smell", /datum/mood_event/disgust/nauseating_stench)
+					vomit()
+			if(30 to INFINITY)
+				//Higher chance to vomit. Let the horror start
+				if(prob(25))
+					to_chat(src, "<span class='warning'>The stench of rotting carcasses is unbearable!</span>")
+					SEND_SIGNAL(src, COMSIG_ADD_MOOD_EVENT, "smell", /datum/mood_event/disgust/nauseating_stench)
+					vomit()
+			else
+				SEND_SIGNAL(src, COMSIG_CLEAR_MOOD_EVENT, "smell")
+	//Clear all moods if no miasma at all
+	else
+		SEND_SIGNAL(src, COMSIG_CLEAR_MOOD_EVENT, "smell")
+	//AQ EDIT END
+
 	//BREATH TEMPERATURE
 	handle_breath_temperature(breath)
 
diff --git a/code/modules/mob/living/simple_animal/bot/atmosbot.dm b/code/modules/mob/living/simple_animal/bot/atmosbot.dm
index 609be5abf0a..325b1af4867 100644
--- a/code/modules/mob/living/simple_animal/bot/atmosbot.dm
+++ b/code/modules/mob/living/simple_animal/bot/atmosbot.dm
@@ -15,6 +15,7 @@
 #define ATMOSBOT_VENT_AIR 2
 #define ATMOSBOT_SCRUB_TOXINS 3
 #define ATMOSBOT_TEMPERATURE_CONTROL 4
+#define ATMOSBOT_SPRAY_MIASMA 5//AQ EDIT
 
 //Floorbot
 /mob/living/simple_animal/bot/atmosbot
@@ -55,6 +56,7 @@
 		GAS_BZ = 1,
 		GAS_CO2 = 1,
 		GAS_HYPERNOB = 1,
+		GAS_MIASMA = 1,//AQ EDIT
 		GAS_NITROUS = 1,
 		GAS_NITRYL = 1,
 		GAS_PLASMA = 1,
@@ -196,7 +198,7 @@
 	if(pressure_delta > 0)
 		var/transfer_moles = pressure_delta*environment.return_volume()/(T20C * R_IDEAL_GAS_EQUATION)
 		if(emagged == 2)
-			environment.adjust_moles(GAS_CO2, transfer_moles)
+			environment.adjust_moles(GAS_MIASMA, transfer_moles)//AQ EDIT zamiast CO2
 		else
 			environment.adjust_moles(GAS_N2, transfer_moles * 0.7885)
 			environment.adjust_moles(GAS_O2, transfer_moles * 0.2115)
diff --git a/code/modules/shuttle/super_cruise/orbital_poi_generator/loot/alien_artifact.dm b/code/modules/shuttle/super_cruise/orbital_poi_generator/loot/alien_artifact.dm
index dd26bf9e873..7453a0e5ba0 100644
--- a/code/modules/shuttle/super_cruise/orbital_poi_generator/loot/alien_artifact.dm
+++ b/code/modules/shuttle/super_cruise/orbital_poi_generator/loot/alien_artifact.dm
@@ -397,6 +397,7 @@ GLOBAL_LIST_EMPTY(destabliization_exits)
 	var/static/list/valid_outputs = list(
 		/datum/gas/bz = 3,
 		/datum/gas/hypernoblium = 1,
+		/datum/gas/miasma = 3,//AQ
 		/datum/gas/plasma = 3,
 		/datum/gas/tritium = 2,
 		/datum/gas/nitryl = 1
diff --git a/code/modules/surgery/organs/lungs.dm b/code/modules/surgery/organs/lungs.dm
index 989cbd49ed5..db7f464f8ab 100644
--- a/code/modules/surgery/organs/lungs.dm
+++ b/code/modules/surgery/organs/lungs.dm
@@ -271,6 +271,54 @@
 			H.reagents.add_reagent(/datum/reagent/stimulum, max(0, 5 - existing))
 		breath.adjust_moles(GAS_STIMULUM, -gas_breathed)
 
+	// Miasma - AQ
+		if (breath.get_moles(GAS_MIASMA))
+			var/miasma_pp = PP(breath,GAS_MIASMA)
+			if(miasma_pp > MINIMUM_MOLES_DELTA_TO_MOVE)
+
+				//Miasma sickness
+				if(prob(0.05 * miasma_pp))
+					var/datum/disease/advance/miasma_disease = new /datum/disease/advance/random(TRUE, 2, 3)
+					miasma_disease.name = "Unknown"
+					miasma_disease.try_infect(owner)
+
+				// Miasma side effects
+				switch(miasma_pp)
+					if(1 to 5)
+						// At lower pp, give out a little warning
+						SEND_SIGNAL(owner, COMSIG_CLEAR_MOOD_EVENT, "smell")
+						if(prob(5))
+							to_chat(owner, "<span class='notice'>There is an unpleasant smell in the air.</span>")
+					if(6 to 15)
+						//At somewhat higher pp, warning becomes more obvious
+						if(prob(15))
+							to_chat(owner, "<span class='warning'>You smell something horribly decayed inside this room.</span>")
+							SEND_SIGNAL(owner, COMSIG_ADD_MOOD_EVENT, "smell", /datum/mood_event/disgust/bad_smell)
+					if(16 to 30)
+						//Small chance to vomit. By now, people have internals on anyway
+						if(prob(5))
+							to_chat(owner, "<span class='warning'>The stench of rotting carcasses is unbearable!</span>")
+							SEND_SIGNAL(owner, COMSIG_ADD_MOOD_EVENT, "smell", /datum/mood_event/disgust/nauseating_stench)
+							owner.vomit()
+					if(31 to INFINITY)
+						//Higher chance to vomit. Let the horror start
+						if(prob(15))
+							to_chat(owner, "<span class='warning'>The stench of rotting carcasses is unbearable!</span>")
+							SEND_SIGNAL(owner, COMSIG_ADD_MOOD_EVENT, "smell", /datum/mood_event/disgust/nauseating_stench)
+							owner.vomit()
+					else
+						SEND_SIGNAL(owner, COMSIG_CLEAR_MOOD_EVENT, "smell")
+
+				// In a full miasma atmosphere with 101.34 pKa, about 10 disgust per breath, is pretty low compared to threshholds
+				// Then again, this is a purely hypothetical scenario and hardly reachable
+				owner.adjust_disgust(0.1 * miasma_pp)
+
+				breath.adjust_moles(GAS_MIASMA, -gas_breathed)
+
+		// Clear out moods when no miasma at all
+		else
+			SEND_SIGNAL(owner, COMSIG_CLEAR_MOOD_EVENT, "smell")
+
 	// Nucleium - NSV 13
 		var/nucleium_pp = PP(breath, GAS_NUCLEIUM)
 		switch(nucleium_pp)