diff --git a/Resources/Prototypes/Entities/Clothing/Head/hardsuit-helmets.yml b/Resources/Prototypes/Entities/Clothing/Head/hardsuit-helmets.yml
index 11a390d8d4..7c9fbfce2a 100644
--- a/Resources/Prototypes/Entities/Clothing/Head/hardsuit-helmets.yml
+++ b/Resources/Prototypes/Entities/Clothing/Head/hardsuit-helmets.yml
@@ -440,6 +440,8 @@
         Piercing: 0.8
         Heat: 0.2
         Radiation: 0.5
+  - type: DiseaseProtection
+    protection: 0.15
 
 - type: entity
   parent: ClothingHeadHardsuitWithLightBase
@@ -482,6 +484,8 @@
         Shock: 0.1
         Cold: 0.2
         Radiation: 0.2
+  - type: DiseaseProtection
+    protection: 0.25
 
 - type: entity
   parent: ClothingHeadHardsuitBase
@@ -555,6 +559,8 @@
     sprite: Clothing/Head/Hardsuits/ERThelmets/ertmedical.rsi
   - type: PointLight
     color: "#adffec"
+  - type: DiseaseProtection
+    protection: 0.20
 
 - type: entity
   parent: ClothingHeadHelmetHardsuitERTLeader
diff --git a/Resources/Prototypes/Entities/Clothing/Head/hoods.yml b/Resources/Prototypes/Entities/Clothing/Head/hoods.yml
index ed3b56668e..000a127843 100644
--- a/Resources/Prototypes/Entities/Clothing/Head/hoods.yml
+++ b/Resources/Prototypes/Entities/Clothing/Head/hoods.yml
@@ -41,7 +41,6 @@
   - type: Clothing
     sprite: Clothing/Head/Hoods/Bio/janitor.rsi
 
-
 - type: entity
   parent: ClothingHeadHatHoodBioGeneral
   id: ClothingHeadHatHoodBioScientist
diff --git a/Resources/Prototypes/Entities/Clothing/OuterClothing/bio.yml b/Resources/Prototypes/Entities/Clothing/OuterClothing/bio.yml
index 923662939d..c5a93fe640 100644
--- a/Resources/Prototypes/Entities/Clothing/OuterClothing/bio.yml
+++ b/Resources/Prototypes/Entities/Clothing/OuterClothing/bio.yml
@@ -28,11 +28,7 @@
   - type: Clothing
     sprite: Clothing/OuterClothing/Bio/cmo.rsi
   - type: DiseaseProtection
-    protection: 0.3
-  - type: Armor
-    modifiers:
-      coefficients:
-        Caustic: 0.5
+    protection: 0.5
 
 - type: entity
   parent: ClothingOuterBioGeneral
@@ -45,10 +41,6 @@
     sprite: Clothing/OuterClothing/Bio/janitor.rsi
   - type: Clothing
     sprite: Clothing/OuterClothing/Bio/janitor.rsi
-  - type: Armor
-    modifiers:
-      coefficients:
-        Caustic: 0.5
 
 - type: entity
   parent: ClothingOuterBioGeneral
@@ -61,10 +53,8 @@
     sprite: Clothing/OuterClothing/Bio/scientist.rsi
   - type: Clothing
     sprite: Clothing/OuterClothing/Bio/scientist.rsi
-  - type: Armor
-    modifiers:
-      coefficients:
-        Caustic: 0.5
+  - type: DiseaseProtection
+    protection: 0.3
 
 - type: entity
   parent: ClothingOuterBioGeneral
@@ -77,10 +67,8 @@
     sprite: Clothing/OuterClothing/Bio/security.rsi
   - type: Clothing
     sprite: Clothing/OuterClothing/Bio/security.rsi
-  - type: Armor
-    modifiers:
-      coefficients:
-        Caustic: 0.5
+  - type: DiseaseProtection
+    protection: 0.3
 
 - type: entity
   parent: ClothingOuterBioCmo
@@ -93,7 +81,5 @@
     sprite: Clothing/OuterClothing/Bio/virology.rsi
   - type: Clothing
     sprite: Clothing/OuterClothing/Bio/virology.rsi
-  - type: Armor
-    modifiers:
-      coefficients:
-        Caustic: 0.5
+  - type: DiseaseProtection
+    protection: 0.5
diff --git a/Resources/Prototypes/Entities/Clothing/OuterClothing/hardsuits.yml b/Resources/Prototypes/Entities/Clothing/OuterClothing/hardsuits.yml
index 95f09f3cf5..6c0835aa59 100644
--- a/Resources/Prototypes/Entities/Clothing/OuterClothing/hardsuits.yml
+++ b/Resources/Prototypes/Entities/Clothing/OuterClothing/hardsuits.yml
@@ -659,6 +659,8 @@
     damageCoefficient: 0.3
   - type: ToggleableClothing
     clothingPrototype: ClothingHeadHelmetHardsuitSyndieElite
+  - type: DiseaseProtection
+    protection: 0.2
 
 - type: entity
   parent: ClothingOuterHardsuitBase
@@ -693,6 +695,8 @@
     damageCoefficient: 0.7
   - type: ToggleableClothing
     clothingPrototype: ClothingHeadHelmetCBURN
+  - type: DiseaseProtection
+    protection: 0.4
 
 #ERT
 - type: entity
@@ -731,6 +735,9 @@
     sprite: Clothing/OuterClothing/Hardsuits/ERTSuits/ertmedical.rsi
   - type: ToggleableClothing
     clothingPrototype: ClothingHeadHelmetHardsuitERTMedical
+  - type: DiseaseProtection
+    protection: 0.25
+
 
 - type: entity
   parent: ClothingOuterHardsuitERTLeader