You now stop breathing while in crit.

Content.Server/GameObjects/Components/Body/Behavior/LungBehavior.cs

@@ -8,6 +8,7 @@ using Content.Server.GameObjects.Components.Body.Respiratory;
 using Content.Server.Utility;
 using Content.Shared.Atmos;
 using Content.Shared.GameObjects.Components.Body.Behavior;
+using Content.Shared.GameObjects.Components.Mobs.State;
 using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
@@ -99,6 +100,11 @@ namespace Content.Server.GameObjects.Components.Body.Behavior
 
         public override void Update(float frameTime)
         {
+            if (Body != null && Body.Owner.TryGetComponent(out IMobStateComponent? mobState) && mobState.IsCritical())
+            {
+                return;
+            }
+
             if (Status == LungStatus.None)
             {
                 Status = LungStatus.Inhaling;

Content.Server/GameObjects/Components/Metabolism/MetabolismComponent.cs

@@ -206,10 +206,13 @@ namespace Content.Server.GameObjects.Components.Metabolism
 
                 if (bloodstreamAmount < amountNeeded)
                 {
-                    // Panic inhale
-                    foreach (var lung in lungs)
+                    if (!Owner.GetComponent<IMobStateComponent>().IsCritical())
                     {
-                        lung.Gasp();
+                        // Panic inhale
+                        foreach (var lung in lungs)
+                        {
+                            lung.Gasp();
+                        }
                     }
 
                     bloodstreamAmount = bloodstream.Air.GetMoles(gas);