From 3ad2f35f29d4e409e4322446ba0c1671dfe0d421 Mon Sep 17 00:00:00 2001
From: Aarni Koskela <akx@iki.fi>
Date: Sun, 2 Nov 2025 18:54:40 +0200
Subject: [PATCH] Add support for PM4 sensor state (#27754)

---
 gallery/src/pages/misc/entity-state.ts  | 1 +
 src/common/entity/get_states.ts         | 1 +
 src/fake_data/entity_component_icons.ts | 6 ++++++
 test/common/entity/get_states.test.ts   | 3 ++-
 4 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/gallery/src/pages/misc/entity-state.ts b/gallery/src/pages/misc/entity-state.ts
index 8d1fa8a020..832fdaba02 100644
--- a/gallery/src/pages/misc/entity-state.ts
+++ b/gallery/src/pages/misc/entity-state.ts
@@ -39,6 +39,7 @@ const SENSOR_DEVICE_CLASSES = [
   "pm1",
   "pm10",
   "pm25",
+  "pm4",
   "power_factor",
   "power",
   "precipitation",
diff --git a/src/common/entity/get_states.ts b/src/common/entity/get_states.ts
index 9fb55b02a2..8f6f6c8fd8 100644
--- a/src/common/entity/get_states.ts
+++ b/src/common/entity/get_states.ts
@@ -214,6 +214,7 @@ const FIXED_DOMAIN_ATTRIBUTE_STATES = {
       "pm1",
       "pm10",
       "pm25",
+      "pm4",
       "power_factor",
       "power",
       "pressure",
diff --git a/src/fake_data/entity_component_icons.ts b/src/fake_data/entity_component_icons.ts
index ab59081d8c..2b669ca191 100644
--- a/src/fake_data/entity_component_icons.ts
+++ b/src/fake_data/entity_component_icons.ts
@@ -97,6 +97,9 @@ export const ENTITY_COMPONENT_ICONS: Record<string, ComponentIcons> = {
     pm25: {
       default: "mdi:molecule",
     },
+    pm4: {
+      default: "mdi:molecule",
+    },
     power: {
       default: "mdi:flash",
     },
@@ -674,6 +677,9 @@ export const ENTITY_COMPONENT_ICONS: Record<string, ComponentIcons> = {
     pm25: {
       default: "mdi:molecule",
     },
+    pm4: {
+      default: "mdi:molecule",
+    },
     power: {
       default: "mdi:flash",
     },
diff --git a/test/common/entity/get_states.test.ts b/test/common/entity/get_states.test.ts
index ba3a8c0f71..0f3b60fd4d 100644
--- a/test/common/entity/get_states.test.ts
+++ b/test/common/entity/get_states.test.ts
@@ -201,6 +201,7 @@ describe("getStates", () => {
           "pm1",
           "pm10",
           "pm25",
+          "pm4",
           "power_factor",
           "power",
           "pressure",
@@ -215,7 +216,7 @@ describe("getStates", () => {
           "volume_flow_rate",
         ])
       );
-      expect(result.length).toBe(34);
+      expect(result.length).toBe(35);
     });
 
     it("should return empty array for unknown attribute", () => {