diff --git a/code/modules/atmospherics/machinery/airalarm.dm b/code/modules/atmospherics/machinery/airalarm.dm
index 6de0e9fc84c..0ffdd8cc426 100644
--- a/code/modules/atmospherics/machinery/airalarm.dm
+++ b/code/modules/atmospherics/machinery/airalarm.dm
@@ -85,12 +85,12 @@
 	var/datum/radio_frequency/radio_connection
 
 	var/list/TLV = list( // Breathable air.
-		"pressure"					= new/datum/tlv(ONE_ATMOSPHERE * 0.8, ONE_ATMOSPHERE*  0.9, ONE_ATMOSPHERE * 1.1, ONE_ATMOSPHERE * 1.2), // kPa
+		"pressure"					= new/datum/tlv(ONE_ATMOSPHERE * 0.8, ONE_ATMOSPHERE*  0.9, ONE_ATMOSPHERE * 1.1, ONE_ATMOSPHERE * 1.2), // kPa. Values are min2, min1, max1, max2
 		"temperature"				= new/datum/tlv(T0C, T0C+10, T0C+40, T0C+66),
 		/datum/gas/oxygen			= new/datum/tlv(16, 19, 135, 140), // Partial pressure, kpa
 		/datum/gas/nitrogen			= new/datum/tlv(-1, -1, 1000, 1000),
 		/datum/gas/carbon_dioxide	= new/datum/tlv(-1, -1, 5, 10),
-		/datum/gas/miasma			= new/datum/tlv/(-1, -1, 2, 5),
+		/datum/gas/miasma			= new/datum/tlv/(-1, -1, 15, 30),
 		/datum/gas/plasma			= new/datum/tlv/dangerous,
 		/datum/gas/nitrous_oxide	= new/datum/tlv/dangerous,
 		/datum/gas/bz				= new/datum/tlv/dangerous,