diff --git a/homeassistant/components/tuya/const.py b/homeassistant/components/tuya/const.py
index 55af95f0d34..eb56761d26a 100644
--- a/homeassistant/components/tuya/const.py
+++ b/homeassistant/components/tuya/const.py
@@ -96,6 +96,7 @@ class DPCode(StrEnum):
     """
 
     AIR_QUALITY = "air_quality"
+    AIR_QUALITY_INDEX = "air_quality_index"
     ALARM_SWITCH = "alarm_switch"  # Alarm switch
     ALARM_TIME = "alarm_time"  # Alarm time
     ALARM_VOLUME = "alarm_volume"  # Alarm volume
diff --git a/homeassistant/components/tuya/icons.json b/homeassistant/components/tuya/icons.json
index 48ae61f36fd..e28371f2b3d 100644
--- a/homeassistant/components/tuya/icons.json
+++ b/homeassistant/components/tuya/icons.json
@@ -236,6 +236,9 @@
       },
       "air_quality": {
         "default": "mdi:air-filter"
+      },
+      "air_quality_index": {
+        "default": "mdi:air-filter"
       }
     },
     "switch": {
diff --git a/homeassistant/components/tuya/sensor.py b/homeassistant/components/tuya/sensor.py
index 1ab3ea700d7..4f3c6099377 100644
--- a/homeassistant/components/tuya/sensor.py
+++ b/homeassistant/components/tuya/sensor.py
@@ -264,8 +264,12 @@ SENSORS: dict[str, tuple[TuyaSensorEntityDescription, ...]] = {
         ),
     ),
     # Air Quality Monitor
-    # No specification on Tuya portal
+    # https://developer.tuya.com/en/docs/iot/hjjcy?id=Kbeoad8y1nnlv
     "hjjcy": (
+        TuyaSensorEntityDescription(
+            key=DPCode.AIR_QUALITY_INDEX,
+            translation_key="air_quality_index",
+        ),
         TuyaSensorEntityDescription(
             key=DPCode.TEMP_CURRENT,
             translation_key="temperature",
@@ -301,6 +305,13 @@ SENSORS: dict[str, tuple[TuyaSensorEntityDescription, ...]] = {
             device_class=SensorDeviceClass.PM25,
             state_class=SensorStateClass.MEASUREMENT,
         ),
+        TuyaSensorEntityDescription(
+            key=DPCode.PM10,
+            translation_key="pm10",
+            device_class=SensorDeviceClass.PM10,
+            state_class=SensorStateClass.MEASUREMENT,
+        ),
+        *BATTERY_SENSORS,
     ),
     # Formaldehyde Detector
     # Note: Not documented
diff --git a/homeassistant/components/tuya/strings.json b/homeassistant/components/tuya/strings.json
index 6b699c0ffc0..865fbaffbbe 100644
--- a/homeassistant/components/tuya/strings.json
+++ b/homeassistant/components/tuya/strings.json
@@ -620,6 +620,17 @@
           "good": "Good",
           "severe": "Severe"
         }
+      },
+      "air_quality_index": {
+        "name": "Air quality index",
+        "state": {
+          "level_1": "Level 1",
+          "level_2": "Level 2",
+          "level_3": "Level 3",
+          "level_4": "Level 4",
+          "level_5": "Level 5",
+          "level_6": "Level 6"
+        }
       }
     },
     "switch": {