diff --git a/code/__HELPERS/unsorted.dm b/code/__HELPERS/unsorted.dm
index e509e5bb806..c1dd0f89a46 100644
--- a/code/__HELPERS/unsorted.dm
+++ b/code/__HELPERS/unsorted.dm
@@ -901,8 +901,8 @@ var/list/WALLITEMS_INVERSE = list(
 
 		for(var/id in cached_gases)
 			var/gas_concentration = cached_gases[id][MOLES]/total_moles
-			if(id in hardcoded_gases || gas_concentration > 0.01) //ensures the four primary gases are always shown.
-				user << "<span class='notice'>[cached_gases[id][GAS_META][META_GAS_NAME]]: [round(gas_concentration*100)] %</span>"
+			if(id in hardcoded_gases || gas_concentration > 0.001) //ensures the four primary gases are always shown.
+				user << "<span class='notice'>[cached_gases[id][GAS_META][META_GAS_NAME]]: [round(gas_concentration*100, 0.01)] %</span>"
 
 		user << "<span class='notice'>Temperature: [round(air_contents.temperature-T0C)] &deg;C</span>"
 	else
diff --git a/code/game/objects/items/devices/PDA/PDA.dm b/code/game/objects/items/devices/PDA/PDA.dm
index d5fd7d18964..5e07f7c3e54 100644
--- a/code/game/objects/items/devices/PDA/PDA.dm
+++ b/code/game/objects/items/devices/PDA/PDA.dm
@@ -269,8 +269,8 @@ var/global/list/obj/item/device/pda/PDAs = list()
 					if (total_moles)
 						for(var/id in env_gases)
 							var/gas_level = env_gases[id][MOLES]/total_moles
-							if(id in hardcoded_gases || gas_level > 0.01)
-								dat += "[env_gases[id][GAS_META][META_GAS_NAME]]: [round(gas_level*100)]%<br>"
+							if(id in hardcoded_gases || gas_level > 0.001)
+								dat += "[env_gases[id][GAS_META][META_GAS_NAME]]: [round(gas_level*100, 0.01)]%<br>"
 
 					dat += "Temperature: [round(environment.temperature-T0C)]&deg;C<br>"
 				dat += "<br>"
diff --git a/code/game/objects/items/devices/scanners.dm b/code/game/objects/items/devices/scanners.dm
index 68052b14958..7099ecfa557 100644
--- a/code/game/objects/items/devices/scanners.dm
+++ b/code/game/objects/items/devices/scanners.dm
@@ -281,28 +281,30 @@ MASS SPECTROMETER
 		environment.garbage_collect()
 
 		if(abs(n2_concentration - N2STANDARD) < 20)
-			user << "<span class='info'>Nitrogen: [round(n2_concentration*100)] %</span>"
+			user << "<span class='info'>Nitrogen: [round(n2_concentration*100, 0.01)] %</span>"
 		else
-			user << "<span class='alert'>Nitrogen: [round(n2_concentration*100)] %</span>"
+			user << "<span class='alert'>Nitrogen: [round(n2_concentration*100, 0.01)] %</span>"
 
 		if(abs(o2_concentration - O2STANDARD) < 2)
-			user << "<span class='info'>Oxygen: [round(o2_concentration*100)] %</span>"
+			user << "<span class='info'>Oxygen: [round(o2_concentration*100, 0.01)] %</span>"
 		else
-			user << "<span class='alert'>Oxygen: [round(o2_concentration*100)] %</span>"
+			user << "<span class='alert'>Oxygen: [round(o2_concentration*100, 0.01)] %</span>"
 
 		if(co2_concentration > 0.01)
-			user << "<span class='alert'>CO2: [round(co2_concentration*100)] %</span>"
+			user << "<span class='alert'>CO2: [round(co2_concentration*100, 0.01)] %</span>"
 		else
-			user << "<span class='info'>CO2: [round(co2_concentration*100)] %</span>"
+			user << "<span class='info'>CO2: [round(co2_concentration*100, 0.01)] %</span>"
 
-		if(plasma_concentration > 0.01)
-			user << "<span class='info'>Plasma: [round(plasma_concentration*100)] %</span>"
+		if(plasma_concentration > 0.005)
+			user << "<span class='alert'>Plasma: [round(plasma_concentration*100, 0.01)] %</span>"
+		else
+			user << "<span class='info'>Plasma: [round(plasma_concentration*100, 0.01)] %</span>"
 
 		for(var/id in env_gases)
 			if(id in hardcoded_gases)
 				continue
 			var/gas_concentration = env_gases[id][MOLES]/total_moles
-			user << "<span class='alert'>[env_gases[id][GAS_META][META_GAS_NAME]]: [round(gas_concentration*100)] %</span>"
+			user << "<span class='alert'>[env_gases[id][GAS_META][META_GAS_NAME]]: [round(gas_concentration*100, 0.01)] %</span>"
 		user << "<span class='info'>Temperature: [round(environment.temperature-T0C)] &deg;C</span>"