diff --git a/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm b/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm
index 8570977d617..244e9c26aa3 100644
--- a/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm
+++ b/code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm
@@ -213,7 +213,7 @@
 	var/datum/gas_mixture/environment = tile.return_air()
 
 	if(scrubbing)
-		if((environment.toxins>0.001) || (environment.carbon_dioxide>0.001) || (environment.trace_gases.len>0))
+		if((scrub_O2 && environment.oxygen>0.001) || (scrub_N2 && environment.nitrogen>0.001) || (scrub_CO2 && environment.carbon_dioxide>0.001) || (scrub_Toxins && environment.toxins>0.001) || (environment.trace_gases.len>0))
 			var/transfer_moles = min(1, volume_rate/environment.volume)*environment.total_moles()
 
 			//Take a gas sample