diff --git a/code/__DEFINES/atmospherics/atmos_mob_interaction.dm b/code/__DEFINES/atmospherics/atmos_mob_interaction.dm
index 084a8ba8654..260a80190e7 100644
--- a/code/__DEFINES/atmospherics/atmos_mob_interaction.dm
+++ b/code/__DEFINES/atmospherics/atmos_mob_interaction.dm
@@ -17,6 +17,9 @@
 /// Useful for doing "we're done" effects without duped code
 #define BREATH_LOST 1
 
+//The proportion of oxygen needed for metabolism compared to pluoxium. (Pluoxium is this many times efficient as oxygen)
+#define PLUOXIUM_PROPORTION 8
+
 //Defines for N2O and Healium euphoria moodlets
 #define EUPHORIA_INACTIVE 0
 #define EUPHORIA_ACTIVE 1
diff --git a/code/datums/elements/atmos_requirements.dm b/code/datums/elements/atmos_requirements.dm
index b863697d08a..1ac10f02027 100644
--- a/code/datums/elements/atmos_requirements.dm
+++ b/code/datums/elements/atmos_requirements.dm
@@ -46,10 +46,10 @@
 		return FALSE
 
 	var/open_turf_gases = open_turf.air.gases
-	open_turf.air.assert_gases(/datum/gas/oxygen, /datum/gas/nitrogen, /datum/gas/carbon_dioxide, /datum/gas/plasma)
+	open_turf.air.assert_gases(/datum/gas/oxygen, /datum/gas/pluoxium, /datum/gas/nitrogen, /datum/gas/carbon_dioxide, /datum/gas/plasma)
 
 	var/plas = open_turf_gases[/datum/gas/plasma][MOLES]
-	var/oxy = open_turf_gases[/datum/gas/oxygen][MOLES]
+	var/oxy = open_turf_gases[/datum/gas/oxygen][MOLES] + (open_turf_gases[/datum/gas/pluoxium][MOLES] * PLUOXIUM_PROPORTION)
 	var/n2 = open_turf_gases[/datum/gas/nitrogen][MOLES]
 	var/co2 = open_turf_gases[/datum/gas/carbon_dioxide][MOLES]
 
diff --git a/code/modules/mob/living/carbon/life.dm b/code/modules/mob/living/carbon/life.dm
index a068c69ba59..a06bee297fb 100644
--- a/code/modules/mob/living/carbon/life.dm
+++ b/code/modules/mob/living/carbon/life.dm
@@ -208,7 +208,7 @@
 		// Breath has more than 0 moles of gas.
 		// Partial pressures of "main gases".
 		pluoxium_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/pluoxium][MOLES])
-		o2_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/oxygen][MOLES] + (8 * pluoxium_pp))
+		o2_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/oxygen][MOLES] + (PLUOXIUM_PROPORTION * pluoxium_pp))
 		plasma_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/plasma][MOLES])
 		co2_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/carbon_dioxide][MOLES])
 		// Partial pressures of "trace" gases.
diff --git a/code/modules/mob/living/simple_animal/simple_animal.dm b/code/modules/mob/living/simple_animal/simple_animal.dm
index 9d63e2e7340..63f1565a1a8 100644
--- a/code/modules/mob/living/simple_animal/simple_animal.dm
+++ b/code/modules/mob/living/simple_animal/simple_animal.dm
@@ -322,10 +322,10 @@
 		var/turf/open/ST = loc
 		if(ST.air)
 			var/ST_gases = ST.air.gases
-			ST.air.assert_gases(/datum/gas/oxygen, /datum/gas/nitrogen, /datum/gas/carbon_dioxide, /datum/gas/plasma)
+			ST.air.assert_gases(/datum/gas/oxygen, /datum/gas/pluoxium, /datum/gas/nitrogen, /datum/gas/carbon_dioxide, /datum/gas/plasma)
 
 			var/plas = ST_gases[/datum/gas/plasma][MOLES]
-			var/oxy = ST_gases[/datum/gas/oxygen][MOLES]
+			var/oxy = ST_gases[/datum/gas/oxygen][MOLES] + (ST_gases[/datum/gas/pluoxium][MOLES] * PLUOXIUM_PROPORTION)
 			var/n2 = ST_gases[/datum/gas/nitrogen][MOLES]
 			var/co2 = ST_gases[/datum/gas/carbon_dioxide][MOLES]