diff --git a/code/ATMOSPHERICS/components/trinary_devices/filter.dm b/code/ATMOSPHERICS/components/trinary_devices/filter.dm
index 0a055825a4..2778566923 100755
--- a/code/ATMOSPHERICS/components/trinary_devices/filter.dm
+++ b/code/ATMOSPHERICS/components/trinary_devices/filter.dm
@@ -40,7 +40,7 @@
 	..()
 	switch(filter_type)
 		if(0) //removing hydrocarbons
-			filtered_out = list("phoron", "oxygen_agent_b")
+			filtered_out = list("phoron")
 		if(1) //removing O2
 			filtered_out = list("oxygen")
 		if(2) //removing N2
@@ -95,10 +95,10 @@
 
 /obj/machinery/atmospherics/trinary/filter/process()
 	..()
-	
+
 	last_power_draw = 0
 	last_flow_rate = 0
-	
+
 	if((stat & (NOPOWER|BROKEN)) || !use_power)
 		return
 
diff --git a/code/defines/gases.dm b/code/defines/gases.dm
index 659bd2e21a..65e45c31ef 100644
--- a/code/defines/gases.dm
+++ b/code/defines/gases.dm
@@ -21,11 +21,11 @@
 /decl/xgm_gas/phoron
 	id = "phoron"
 	name = "Phoron"
-	
+
 	//Note that this has a significant impact on TTV yield.
 	//Because it is so high, any leftover phoron soaks up a lot of heat and drops the yield pressure.
 	specific_heat = 200	// J/(mol*K)
-	
+
 	//Hypothetical group 14 (same as carbon), period 8 element.
 	//Using multiplicity rule, it's atomic number is 162
 	//and following a N/Z ratio of 1.5, the molar mass of a monatomic gas is:
@@ -51,9 +51,3 @@
 
 	tile_overlay = "sleeping_agent"
 	overlay_limit = 1
-
-/decl/xgm_gas/oxygen_agent_b
-	id = "oxygen_agent_b"
-	name = "Oxygen Agent-B"	//what is this?
-	specific_heat = 300	// J/(mol*K)
-	molar_mass = 0.032	// kg/mol
diff --git a/code/game/machinery/atmoalter/scrubber.dm b/code/game/machinery/atmoalter/scrubber.dm
index 10091a4918..0fffc9dfa2 100644
--- a/code/game/machinery/atmoalter/scrubber.dm
+++ b/code/game/machinery/atmoalter/scrubber.dm
@@ -17,7 +17,7 @@
 	var/minrate = 0
 	var/maxrate = 10 * ONE_ATMOSPHERE
 
-	var/list/scrubbing_gas = list("phoron", "carbon_dioxide", "sleeping_agent", "oxygen_agent_b")
+	var/list/scrubbing_gas = list("phoron", "carbon_dioxide", "sleeping_agent")
 
 /obj/machinery/portable_atmospherics/powered/scrubber/New()
 	..()