diff --git a/homeassistant/components/rituals_perfume_genie/number.py b/homeassistant/components/rituals_perfume_genie/number.py
index d7f8a3677b7..5fde2adcb6f 100644
--- a/homeassistant/components/rituals_perfume_genie/number.py
+++ b/homeassistant/components/rituals_perfume_genie/number.py
@@ -11,7 +11,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
 from . import RitualsDataUpdateCoordinator
-from .const import ATTRIBUTES, COORDINATORS, DEVICES, DOMAIN, ROOM, SPEED
+from .const import ATTRIBUTES, COORDINATORS, DEVICES, DOMAIN, SPEED
 from .entity import DiffuserEntity
 
 _LOGGER = logging.getLogger(__name__)
@@ -22,7 +22,6 @@ MIN_ROOM_SIZE = 1
 MAX_ROOM_SIZE = 4
 
 PERFUME_AMOUNT_SUFFIX = " Perfume Amount"
-ROOM_SIZE_SUFFIX = " Room Size"
 
 
 async def async_setup_entry(
@@ -37,7 +36,6 @@ async def async_setup_entry(
     for hublot, diffuser in diffusers.items():
         coordinator = coordinators[hublot]
         entities.append(DiffuserPerfumeAmount(diffuser, coordinator))
-        entities.append(DiffuserRoomSize(diffuser, coordinator))
 
     async_add_entities(entities)
 
@@ -82,45 +80,3 @@ class DiffuserPerfumeAmount(NumberEntity, DiffuserEntity):
                 MIN_PERFUME_AMOUNT,
                 MAX_PERFUME_AMOUNT,
             )
-
-
-class DiffuserRoomSize(NumberEntity, DiffuserEntity):
-    """Representation of a diffuser room size number."""
-
-    def __init__(
-        self, diffuser: Diffuser, coordinator: RitualsDataUpdateCoordinator
-    ) -> None:
-        """Initialize the diffuser room size number."""
-        super().__init__(diffuser, coordinator, ROOM_SIZE_SUFFIX)
-
-    @property
-    def icon(self) -> str:
-        """Return the icon of the room size entity."""
-        return "mdi:ruler-square"
-
-    @property
-    def value(self) -> int:
-        """Return the current room size."""
-        return self._diffuser.hub_data[ATTRIBUTES][ROOM]
-
-    @property
-    def min_value(self) -> int:
-        """Return the minimum room size."""
-        return MIN_ROOM_SIZE
-
-    @property
-    def max_value(self) -> int:
-        """Return the maximum room size."""
-        return MAX_ROOM_SIZE
-
-    async def async_set_value(self, value: float) -> None:
-        """Set the room size."""
-        if value.is_integer() and MIN_ROOM_SIZE <= value <= MAX_ROOM_SIZE:
-            await self._diffuser.set_room_size(int(value))
-        else:
-            _LOGGER.warning(
-                "Can't set the room size to %s. Room size must be an integer between %s and %s, inclusive",
-                value,
-                MIN_ROOM_SIZE,
-                MAX_ROOM_SIZE,
-            )