diff --git a/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm b/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm
index 487c3323f04..cc253759f72 100644
--- a/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm
+++ b/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm
@@ -93,7 +93,7 @@
 
 	if(pump_direction & RELEASING)
 		icon_state = "vent_out"
-	if(pump_direction & SIPHONING)
+	else //pump_direction == SIPHONING
 		icon_state = "vent_in"
 
 /obj/machinery/atmospherics/components/unary/vent_pump/process_atmos()
@@ -130,7 +130,7 @@
 				loc.assume_air(removed)
 				air_update_turf()
 
-	if(pump_direction & SIPHONING) //external -> internal
+	else //external -> internal
 		var/pressure_delta = 10000
 		if(pressure_checks&EXT_BOUND)
 			pressure_delta = min(pressure_delta, (environment_pressure - external_pressure_bound))
diff --git a/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm b/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm
index cee4e68b4d5..ac52a1d1178 100644
--- a/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm
+++ b/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm
@@ -76,7 +76,7 @@
 			amount += idle_power_usage
 		if (scrub_N2O)
 			amount += idle_power_usage
-	if(scrubbing & SIPHONING)
+	else //scrubbing == SIPHONING
 		amount = active_power_usage
 
 	if (widenet)
@@ -99,7 +99,7 @@
 
 	if(scrubbing & SCRUBBING)
 		icon_state = "scrub_on"
-	if(scrubbing & SIPHONING)
+	else //scrubbing == SIPHONING
 		icon_state = "scrub_purge"
 
 /obj/machinery/atmospherics/components/unary/vent_scrubber/proc/set_frequency(new_frequency)
@@ -203,7 +203,7 @@
 			tile.assume_air(removed)
 			tile.air_update_turf()
 
-	if(scrubbing & SIPHONING) //Just siphoning all air
+	else //Just siphoning all air
 		if (air_contents.return_pressure()>=50*ONE_ATMOSPHERE)
 			return