diff --git a/homeassistant/components/airq/__init__.py b/homeassistant/components/airq/__init__.py
index ab64915c8ae..f87365797e7 100644
--- a/homeassistant/components/airq/__init__.py
+++ b/homeassistant/components/airq/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.core import HomeAssistant
 from .const import CONF_CLIP_NEGATIVE, CONF_RETURN_AVERAGE
 from .coordinator import AirQCoordinator
 
-PLATFORMS: list[Platform] = [Platform.SENSOR]
+PLATFORMS: list[Platform] = [Platform.NUMBER, Platform.SENSOR]
 
 AirQConfigEntry = ConfigEntry[AirQCoordinator]
 
diff --git a/homeassistant/components/airq/coordinator.py b/homeassistant/components/airq/coordinator.py
index 3ab41978b05..7c62a023a11 100644
--- a/homeassistant/components/airq/coordinator.py
+++ b/homeassistant/components/airq/coordinator.py
@@ -75,6 +75,7 @@ class AirQCoordinator(DataUpdateCoordinator):
             return_average=self.return_average,
             clip_negative_values=self.clip_negative,
         )
+        data["brightness"] = await self.airq.get_current_brightness()
         if warming_up_sensors := identify_warming_up_sensors(data):
             _LOGGER.debug(
                 "Following sensors are still warming up: %s", warming_up_sensors
diff --git a/homeassistant/components/airq/number.py b/homeassistant/components/airq/number.py
new file mode 100644
index 00000000000..e980760ed52
--- /dev/null
+++ b/homeassistant/components/airq/number.py
@@ -0,0 +1,85 @@
+"""Definition of air-Q number platform used to control the LED strips."""
+
+from __future__ import annotations
+
+from collections.abc import Awaitable, Callable
+from dataclasses import dataclass
+import logging
+
+from aioairq.core import AirQ
+
+from homeassistant.components.number import NumberEntity, NumberEntityDescription
+from homeassistant.const import PERCENTAGE
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from . import AirQConfigEntry, AirQCoordinator
+
+_LOGGER = logging.getLogger(__name__)
+
+
+@dataclass(frozen=True, kw_only=True)
+class AirQBrightnessDescription(NumberEntityDescription):
+    """Describes AirQ number entity responsible for brightness control."""
+
+    value: Callable[[dict], float]
+    set_value: Callable[[AirQ, float], Awaitable[None]]
+
+
+AIRQ_LED_BRIGHTNESS = AirQBrightnessDescription(
+    key="airq_led_brightness",
+    translation_key="airq_led_brightness",
+    native_min_value=0.0,
+    native_max_value=100.0,
+    native_step=1.0,
+    native_unit_of_measurement=PERCENTAGE,
+    value=lambda data: data["brightness"],
+    set_value=lambda device, value: device.set_current_brightness(value),
+)
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: AirQConfigEntry,
+    async_add_entities: AddConfigEntryEntitiesCallback,
+) -> None:
+    """Set up number entities: a single entity for the LEDs."""
+
+    coordinator = entry.runtime_data
+    entities = [AirQLEDBrightness(coordinator, AIRQ_LED_BRIGHTNESS)]
+
+    async_add_entities(entities)
+
+
+class AirQLEDBrightness(CoordinatorEntity[AirQCoordinator], NumberEntity):
+    """Representation of the LEDs from a single AirQ."""
+
+    _attr_has_entity_name = True
+
+    def __init__(
+        self,
+        coordinator: AirQCoordinator,
+        description: AirQBrightnessDescription,
+    ) -> None:
+        """Initialize a single sensor."""
+        super().__init__(coordinator)
+        self.entity_description: AirQBrightnessDescription = description
+
+        self._attr_device_info = coordinator.device_info
+        self._attr_unique_id = f"{coordinator.device_id}_{description.key}"
+
+    @property
+    def native_value(self) -> float:
+        """Return the brightness of the LEDs in %."""
+        return self.entity_description.value(self.coordinator.data)
+
+    async def async_set_native_value(self, value: float) -> None:
+        """Set the brightness of the LEDs to the value in %."""
+        _LOGGER.debug(
+            "Changing LED brighntess from %.0f%% to %.0f%%",
+            self.coordinator.data["brightness"],
+            value,
+        )
+        await self.entity_description.set_value(self.coordinator.airq, value)
+        await self.coordinator.async_request_refresh()
diff --git a/homeassistant/components/airq/strings.json b/homeassistant/components/airq/strings.json
index de8c7d86b09..2972ba5c15b 100644
--- a/homeassistant/components/airq/strings.json
+++ b/homeassistant/components/airq/strings.json
@@ -35,6 +35,11 @@
     }
   },
   "entity": {
+    "number": {
+      "airq_led_brightness": {
+        "name": "LED brightness"
+      }
+    },
     "sensor": {
       "acetaldehyde": {
         "name": "Acetaldehyde"
diff --git a/tests/components/airq/__init__.py b/tests/components/airq/__init__.py
index 612761c0653..41bc1e467dc 100644
--- a/tests/components/airq/__init__.py
+++ b/tests/components/airq/__init__.py
@@ -1 +1,32 @@
 """Tests for the air-Q integration."""
+
+from unittest.mock import patch
+
+from homeassistant.components.airq.const import DOMAIN
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+
+from .common import TEST_DEVICE_INFO, TEST_USER_DATA
+
+from tests.common import MockConfigEntry
+
+
+async def setup_platform(hass: HomeAssistant, platform: Platform) -> None:
+    """Load AirQ integration.
+
+    This function does not patch AirQ itself, rather it depends on being
+    run in presence of `mock_coordinator_airq` fixture, which patches calls
+    by `AirQCoordinator.airq`, which are done under `async_setup`.
+
+    Patching airq.PLATFORMS allows to set up a single platform in isolation.
+    """
+    config_entry = MockConfigEntry(
+        domain=DOMAIN, data=TEST_USER_DATA, unique_id=TEST_DEVICE_INFO["id"]
+    )
+    config_entry.add_to_hass(hass)
+
+    # The patching is now handled by the mock_airq fixture.
+    # We just need to load the component.
+    with patch("homeassistant.components.airq.PLATFORMS", [platform]):
+        assert await hass.config_entries.async_setup(config_entry.entry_id)
+    await hass.async_block_till_done()
diff --git a/tests/components/airq/common.py b/tests/components/airq/common.py
index 275da60e3a2..2e568c3c3cb 100644
--- a/tests/components/airq/common.py
+++ b/tests/components/airq/common.py
@@ -16,3 +16,4 @@ TEST_DEVICE_INFO = DeviceInfo(
     hw_version="hw",
 )
 TEST_DEVICE_DATA = {"co2": 500.0, "Status": "OK"}
+TEST_BRIGHTNESS = 42
diff --git a/tests/components/airq/conftest.py b/tests/components/airq/conftest.py
index 52d7fc77eb4..21118c3ef27 100644
--- a/tests/components/airq/conftest.py
+++ b/tests/components/airq/conftest.py
@@ -5,7 +5,7 @@ from unittest.mock import AsyncMock, patch
 
 import pytest
 
-from .common import TEST_DEVICE_DATA, TEST_DEVICE_INFO
+from .common import TEST_BRIGHTNESS, TEST_DEVICE_DATA, TEST_DEVICE_INFO
 
 
 @pytest.fixture
@@ -38,4 +38,5 @@ def mock_airq():
         # Pre-configure default mock values for setup
         airq.fetch_device_info = AsyncMock(return_value=TEST_DEVICE_INFO)
         airq.get_latest_data = AsyncMock(return_value=TEST_DEVICE_DATA)
+        airq.get_current_brightness = AsyncMock(return_value=TEST_BRIGHTNESS)
         yield airq
diff --git a/tests/components/airq/test_number.py b/tests/components/airq/test_number.py
new file mode 100644
index 00000000000..b5fa4d65ef1
--- /dev/null
+++ b/tests/components/airq/test_number.py
@@ -0,0 +1,70 @@
+"""Test the NUMBER platform from air-Q integration."""
+
+from unittest.mock import AsyncMock
+
+import pytest
+
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+from homeassistant.exceptions import ServiceValidationError
+
+from . import setup_platform
+from .common import TEST_BRIGHTNESS, TEST_DEVICE_INFO
+
+ENTITY_ID = f"number.{TEST_DEVICE_INFO['name']}_led_brightness"
+
+
+@pytest.fixture(autouse=True)
+async def number_platform(hass: HomeAssistant, mock_airq: AsyncMock) -> None:
+    """Configure AirQ integration and validate the setup for NUMBER platform."""
+    await setup_platform(hass, Platform.NUMBER)
+
+    # Validate the setup
+    state = hass.states.get(ENTITY_ID)
+    assert state is not None, (
+        f"{ENTITY_ID} not found among {hass.states.async_entity_ids()}"
+    )
+    assert float(state.state) == TEST_BRIGHTNESS
+
+
+@pytest.mark.parametrize("new_brightness", [0, 100, (TEST_BRIGHTNESS + 10) % 100])
+async def test_number_set_value(
+    hass: HomeAssistant, mock_airq: AsyncMock, new_brightness
+) -> None:
+    """Test that setting value works."""
+    # Simulate the device confirming the new brightness on the next poll
+    mock_airq.get_current_brightness.return_value = new_brightness
+
+    await hass.services.async_call(
+        "number",
+        "set_value",
+        {"entity_id": ENTITY_ID, "value": new_brightness},
+        blocking=True,
+    )
+    await hass.async_block_till_done()
+
+    # Verify the API methods were called correctly
+    mock_airq.set_current_brightness.assert_called_once_with(new_brightness)
+
+    # Validate that the update propagated to the state
+    state = hass.states.get(ENTITY_ID)
+    assert state is not None, (
+        f"{ENTITY_ID} not found among {hass.states.async_entity_ids()}"
+    )
+    assert float(state.state) == new_brightness
+
+
+@pytest.mark.parametrize("new_brightness", [-1, 110])
+async def test_number_set_invalid_value_caught_by_hass(
+    hass: HomeAssistant, mock_airq: AsyncMock, new_brightness
+) -> None:
+    """Test that setting incorrect values errors."""
+    with pytest.raises(ServiceValidationError):
+        await hass.services.async_call(
+            "number",
+            "set_value",
+            {"entity_id": ENTITY_ID, "value": new_brightness},
+            blocking=True,
+        )
+
+    mock_airq.set_current_brightness.assert_not_called()