diff --git a/code/game/objects/effects/chemsmoke.dm b/code/game/objects/effects/chemsmoke.dm
index 37ea4fd096c..f641561ba86 100644
--- a/code/game/objects/effects/chemsmoke.dm
+++ b/code/game/objects/effects/chemsmoke.dm
@@ -149,7 +149,7 @@
 								if(!dist)
 									dist = 1
 								R.reaction_mob(A, volume = R.volume / dist)
-							else if(istype(A, /obj))
+							else if(istype(A, /obj) && !A.simulated)
 								R.reaction_obj(A, R.volume)
 					sleep(30)
 
diff --git a/code/modules/reagents/Chemistry-Holder.dm b/code/modules/reagents/Chemistry-Holder.dm
index a9562ca8610..71b73800b30 100644
--- a/code/modules/reagents/Chemistry-Holder.dm
+++ b/code/modules/reagents/Chemistry-Holder.dm
@@ -435,6 +435,8 @@ var/const/INGEST = 2
 	return 0
 
 /datum/reagents/proc/reaction(var/atom/A, var/method=TOUCH, var/volume_modifier=0)
+	if(!istype(A) || !A.simulated)
+		return
 
 	switch(method)
 		if(TOUCH)