diff --git a/code/modules/mob/living/carbon/human/life.dm b/code/modules/mob/living/carbon/human/life.dm
index b69d327807..4cfc230075 100644
--- a/code/modules/mob/living/carbon/human/life.dm
+++ b/code/modules/mob/living/carbon/human/life.dm
@@ -76,8 +76,20 @@
 
 /mob/living/carbon/human/check_breath(datum/gas_mixture/breath)
 
-	var/L = getorganslot(ORGAN_SLOT_LUNGS)
+	if(breath && HAS_TRAIT(src, TRAIT_NOBREATH) && HAS_TRAIT(src, TRAIT_AUXILIARY_LUNGS))	//Something something bz and synth cooling systems interacting (in reality, this only exists to not make robot lings too strong)
+		var/total_moles = breath.total_moles()
+		var/pressure = breath.return_pressure()
+		#define PP_MOLES(X) ((X / total_moles) * pressure)
+		#define PP(air, gas) PP_MOLES(air.get_moles(gas))
+		var/bz_pp = PP(breath, GAS_BZ)
+		if(bz_pp > 1)
+			reagents.add_reagent(/datum/reagent/bz_metabolites,5)
+		else if(bz_pp > 0.1)
+			reagents.add_reagent(/datum/reagent/bz_metabolites,1)
+		#undef PP_MOLES
+		#undef PP
 
+	var/L = getorganslot(ORGAN_SLOT_LUNGS)
 	if(!L)
 		if(HAS_TRAIT(src, TRAIT_NOBREATH))
 			return