diff --git a/Content.Shared/Atmos/Atmospherics.cs b/Content.Shared/Atmos/Atmospherics.cs
index 1e40daf3dd..3105db8e58 100644
--- a/Content.Shared/Atmos/Atmospherics.cs
+++ b/Content.Shared/Atmos/Atmospherics.cs
@@ -274,12 +274,12 @@ namespace Content.Shared.Atmos
         ///    The amount of pressure damage someone takes is equal to ((pressure / HAZARD_HIGH_PRESSURE) - 1)*PRESSURE_DAMAGE_COEFFICIENT,
         ///     with the maximum of MaxHighPressureDamage.
         /// </summary>
-        public const float PressureDamageCoefficient = 4;
+        public const float PressureDamageCoefficient = 1; // Sunrise-Casual
 
         /// <summary>
         ///     Maximum amount of damage that can be endured with high pressure.
         /// </summary>
-        public const int MaxHighPressureDamage = 4;
+        public const int MaxHighPressureDamage = 1; // Sunrise-Casual
 
         /// <summary>
         ///     The amount of damage someone takes when in a low pressure area
diff --git a/Resources/Prototypes/Entities/Mobs/Player/arachnid.yml b/Resources/Prototypes/Entities/Mobs/Player/arachnid.yml
index d9dea3c18d..5ea115355c 100644
--- a/Resources/Prototypes/Entities/Mobs/Player/arachnid.yml
+++ b/Resources/Prototypes/Entities/Mobs/Player/arachnid.yml
@@ -7,7 +7,7 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 1.5 # This makes space and crit more lethal to arachnids.
+        Asphyxiation: 0.5 # Sunrise-Casual
     damageRecovery:
       types:
-        Asphyxiation: -0.5
+        Asphyxiation: -1.0
diff --git a/Resources/Prototypes/Entities/Mobs/Species/base.yml b/Resources/Prototypes/Entities/Mobs/Species/base.yml
index 459511bfdb..2a6752a012 100644
--- a/Resources/Prototypes/Entities/Mobs/Species/base.yml
+++ b/Resources/Prototypes/Entities/Mobs/Species/base.yml
@@ -277,7 +277,7 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 1.0
+        Asphyxiation: 0.5 # Sunrise-Casual
     damageRecovery:
       types:
         Asphyxiation: -1.0
diff --git a/Resources/Prototypes/Entities/Mobs/Species/dwarf.yml b/Resources/Prototypes/Entities/Mobs/Species/dwarf.yml
index 6ce9c80a25..57db842a78 100644
--- a/Resources/Prototypes/Entities/Mobs/Species/dwarf.yml
+++ b/Resources/Prototypes/Entities/Mobs/Species/dwarf.yml
@@ -13,7 +13,7 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 2
+        Asphyxiation: 0.5 # Sunrise-Casual
     damageRecovery:
       types:
         Asphyxiation: -1.0
diff --git a/Resources/Prototypes/Entities/Mobs/Species/slime.yml b/Resources/Prototypes/Entities/Mobs/Species/slime.yml
index c423a42688..3424dbe4a0 100644
--- a/Resources/Prototypes/Entities/Mobs/Species/slime.yml
+++ b/Resources/Prototypes/Entities/Mobs/Species/slime.yml
@@ -104,7 +104,7 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 0.2
+        Asphyxiation: 0.5 # Sunrise-Casual
     damageRecovery:
       types:
         Asphyxiation: -1.0
diff --git a/Resources/Prototypes/Entities/Mobs/base.yml b/Resources/Prototypes/Entities/Mobs/base.yml
index 9de747bd53..7df6191c00 100644
--- a/Resources/Prototypes/Entities/Mobs/base.yml
+++ b/Resources/Prototypes/Entities/Mobs/base.yml
@@ -212,7 +212,7 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 2
+        Asphyxiation: 0.5 # Sunrise-Casual
     damageRecovery:
       types:
         Asphyxiation: -1.0
diff --git a/Resources/Prototypes/_Sunrise/Entities/Mobs/Player/vulpkanin.yml b/Resources/Prototypes/_Sunrise/Entities/Mobs/Player/vulpkanin.yml
index 8d22b35ab8..0e31488f1e 100644
--- a/Resources/Prototypes/_Sunrise/Entities/Mobs/Player/vulpkanin.yml
+++ b/Resources/Prototypes/_Sunrise/Entities/Mobs/Player/vulpkanin.yml
@@ -35,7 +35,7 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 1.0
+        Asphyxiation: 0.5
     damageRecovery:
       types:
         Asphyxiation: -1.0
diff --git a/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/felinid.yml b/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/felinid.yml
index 3027e5dd2b..7eb475bd47 100644
--- a/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/felinid.yml
+++ b/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/felinid.yml
@@ -54,10 +54,10 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 1.5
+        Asphyxiation: 0.5
     damageRecovery:
       types:
-        Asphyxiation: -1.5
+        Asphyxiation: -1.0
   - type: NpcFactionMember
     factions:
       - NanoTrasen
diff --git a/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/humanoid_xeno.yml b/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/humanoid_xeno.yml
index a8e4539416..884f2d8665 100644
--- a/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/humanoid_xeno.yml
+++ b/Resources/Prototypes/_Sunrise/Entities/Mobs/Species/humanoid_xeno.yml
@@ -8,7 +8,7 @@
   - type: Respirator
     damage:
       types:
-        Asphyxiation: 0.2
+        Asphyxiation: 0.5
     damageRecovery:
       types:
         Asphyxiation: -1.0