diff --git a/code/ATMOSPHERICS/atmospherics.dm b/code/ATMOSPHERICS/atmospherics.dm
index b2505271c03..39aac7ede4c 100644
--- a/code/ATMOSPHERICS/atmospherics.dm
+++ b/code/ATMOSPHERICS/atmospherics.dm
@@ -21,6 +21,8 @@ Pipelines + Other Objects -> Pipe network
 	var/pipe_color
 	var/obj/item/pipe/stored
 
+	var/welded = 0 //Used on pumps and scrubbers
+
 	var/global/list/iconsetids = list()
 	var/global/list/pipeimages = list()
 
diff --git a/code/ATMOSPHERICS/components/unary/vent_pump.dm b/code/ATMOSPHERICS/components/unary/vent_pump.dm
index 3cba602bac1..7efc82f265e 100644
--- a/code/ATMOSPHERICS/components/unary/vent_pump.dm
+++ b/code/ATMOSPHERICS/components/unary/vent_pump.dm
@@ -23,8 +23,6 @@
 	//2: Do not pass internal_pressure_bound
 	//3: Do not pass either
 
-	var/welded = 0
-
 	var/frequency = 1439
 	var/datum/radio_frequency/radio_connection
 
diff --git a/code/ATMOSPHERICS/components/unary/vent_scrubber.dm b/code/ATMOSPHERICS/components/unary/vent_scrubber.dm
index cb7859c1268..04e9754f1b2 100644
--- a/code/ATMOSPHERICS/components/unary/vent_scrubber.dm
+++ b/code/ATMOSPHERICS/components/unary/vent_scrubber.dm
@@ -27,6 +27,7 @@
 	var/radio_filter_out
 	var/radio_filter_in
 
+
 /obj/machinery/atmospherics/unary/vent_scrubber/New()
 	..()
 	initial_loc = get_area(loc)
@@ -50,6 +51,10 @@
 	if(showpipe)
 		overlays += getpipeimage('icons/obj/atmospherics/unary_devices.dmi', "scrub_cap", initialize_directions)
 
+	if(welded)
+		icon_state = "scrub_welded"
+		return
+
 	if(!node || !on || stat & (NOPOWER|BROKEN))
 		icon_state = "scrub_off"
 		return
@@ -107,7 +112,7 @@
 	if (!node)
 		on = 0
 	//broadcast_status()
-	if(!on)
+	if(!on || welded)
 		return 0
 
 
@@ -238,6 +243,24 @@
 	update_icon_nopipes()
 
 /obj/machinery/atmospherics/unary/vent_scrubber/attackby(var/obj/item/weapon/W as obj, var/mob/user as mob, params)
+	if(istype(W, /obj/item/weapon/weldingtool))
+		var/obj/item/weapon/weldingtool/WT = W
+		if(WT.remove_fuel(0,user))
+			playsound(loc, 'sound/items/Welder.ogg', 40, 1)
+			user << "<span class='notice'>Now welding \the [src].</span>"
+			if(do_after(user, 20))
+				if(!src || !WT.isOn())
+					return
+				playsound(src.loc, 'sound/items/Welder2.ogg', 50, 1)
+				if(!welded)
+					user.visible_message("[user] welds the scrubber shut.","You weld the vent shit.", "You hear welding.")
+					welded = 1
+					update_icon()
+				else
+					user.visible_message("[user] unwelds the scrubber.", "You unweld the scrubber.", "You hear welding.")
+					welded = 0
+					update_icon()
+			return 1
 	if (!istype(W, /obj/item/weapon/wrench))
 		return ..()
 	if (!(stat & NOPOWER) && on)
@@ -245,6 +268,7 @@
 		return 1
 	return ..()
 
+
 /obj/machinery/atmospherics/unary/vent_scrubber/Destroy()
 	if(initial_loc)
 		initial_loc.air_scrub_info -= id_tag
diff --git a/code/modules/mob/living/ventcrawling.dm b/code/modules/mob/living/ventcrawling.dm
index 90efe23c815..4de322f1bd2 100644
--- a/code/modules/mob/living/ventcrawling.dm
+++ b/code/modules/mob/living/ventcrawling.dm
@@ -17,8 +17,8 @@ var/list/ventcrawl_machinery = list(/obj/machinery/atmospherics/unary/vent_pump,
 
 
 	if(A)
-		var/obj/machinery/atmospherics/unary/vent_pump/V = A
-		if(!istype(V) || !V.welded)//not a vent, or not welded
+		var/obj/machinery/atmospherics/unary/V = A
+		if(istype(V) && (!V.welded))//Not welded
 			vent_found = V
 
 	if(!vent_found)
@@ -26,7 +26,7 @@ var/list/ventcrawl_machinery = list(/obj/machinery/atmospherics/unary/vent_pump,
 			if(is_type_in_list(machine, ventcrawl_machinery))
 				vent_found = machine
 
-			var/obj/machinery/atmospherics/unary/vent_pump/V = machine
+			var/obj/machinery/atmospherics/unary/V = machine
 			if(istype(V) && V.welded)
 				vent_found = null
 
diff --git a/icons/obj/atmospherics/unary_devices.dmi b/icons/obj/atmospherics/unary_devices.dmi
index 60dec4db9a3..bc43f452e17 100644
Binary files a/icons/obj/atmospherics/unary_devices.dmi and b/icons/obj/atmospherics/unary_devices.dmi differ