diff --git a/homeassistant/components/humidifier/__init__.py b/homeassistant/components/humidifier/__init__.py
index b556a6961bb..1498c4f6e3d 100644
--- a/homeassistant/components/humidifier/__init__.py
+++ b/homeassistant/components/humidifier/__init__.py
@@ -4,7 +4,6 @@ from __future__ import annotations
 
 from datetime import timedelta
 from enum import StrEnum
-from functools import partial
 import logging
 from typing import Any, final
 
@@ -22,11 +21,6 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant, ServiceCall
 from homeassistant.exceptions import ServiceValidationError
 from homeassistant.helpers import config_validation as cv
-from homeassistant.helpers.deprecation import (
-    all_with_deprecated_constants,
-    check_if_deprecated_constant,
-    dir_with_deprecated_constants,
-)
 from homeassistant.helpers.entity import ToggleEntity, ToggleEntityDescription
 from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.helpers.typing import ConfigType
@@ -34,9 +28,6 @@ from homeassistant.loader import bind_hass
 from homeassistant.util.hass_dict import HassKey
 
 from .const import (  # noqa: F401
-    _DEPRECATED_DEVICE_CLASS_DEHUMIDIFIER,
-    _DEPRECATED_DEVICE_CLASS_HUMIDIFIER,
-    _DEPRECATED_SUPPORT_MODES,
     ATTR_ACTION,
     ATTR_AVAILABLE_MODES,
     ATTR_CURRENT_HUMIDITY,
@@ -314,13 +305,3 @@ async def async_service_humidity_set(
         )
 
     await entity.async_set_humidity(humidity)
-
-
-# As we import deprecated constants from the const module, we need to add these two functions
-# otherwise this module will be logged for using deprecated constants and not the custom component
-# These can be removed if no deprecated constant are in this module anymore
-__getattr__ = partial(check_if_deprecated_constant, module_globals=globals())
-__dir__ = partial(
-    dir_with_deprecated_constants, module_globals_keys=[*globals().keys()]
-)
-__all__ = all_with_deprecated_constants(globals())
diff --git a/homeassistant/components/humidifier/const.py b/homeassistant/components/humidifier/const.py
index 03ff0774ca0..ceef0c5a890 100644
--- a/homeassistant/components/humidifier/const.py
+++ b/homeassistant/components/humidifier/const.py
@@ -1,15 +1,6 @@
 """Provides the constants needed for component."""
 
 from enum import IntFlag, StrEnum
-from functools import partial
-
-from homeassistant.helpers.deprecation import (
-    DeprecatedConstant,
-    DeprecatedConstantEnum,
-    all_with_deprecated_constants,
-    check_if_deprecated_constant,
-    dir_with_deprecated_constants,
-)
 
 MODE_NORMAL = "normal"
 MODE_ECO = "eco"
@@ -43,15 +34,6 @@ DEFAULT_MAX_HUMIDITY = 100
 
 DOMAIN = "humidifier"
 
-# DEVICE_CLASS_* below are deprecated as of 2021.12
-# use the HumidifierDeviceClass enum instead.
-_DEPRECATED_DEVICE_CLASS_HUMIDIFIER = DeprecatedConstant(
-    "humidifier", "HumidifierDeviceClass.HUMIDIFIER", "2025.1"
-)
-_DEPRECATED_DEVICE_CLASS_DEHUMIDIFIER = DeprecatedConstant(
-    "dehumidifier", "HumidifierDeviceClass.DEHUMIDIFIER", "2025.1"
-)
-
 SERVICE_SET_MODE = "set_mode"
 SERVICE_SET_HUMIDITY = "set_humidity"
 
@@ -60,17 +42,3 @@ class HumidifierEntityFeature(IntFlag):
     """Supported features of the humidifier entity."""
 
     MODES = 1
-
-
-# The SUPPORT_MODES constant is deprecated as of Home Assistant 2022.5.
-# Please use the HumidifierEntityFeature enum instead.
-_DEPRECATED_SUPPORT_MODES = DeprecatedConstantEnum(
-    HumidifierEntityFeature.MODES, "2025.1"
-)
-
-# These can be removed if no deprecated constant are in this module anymore
-__getattr__ = partial(check_if_deprecated_constant, module_globals=globals())
-__dir__ = partial(
-    dir_with_deprecated_constants, module_globals_keys=[*globals().keys()]
-)
-__all__ = all_with_deprecated_constants(globals())
diff --git a/tests/components/humidifier/test_init.py b/tests/components/humidifier/test_init.py
index 2725f942576..9c10d5e39e1 100644
--- a/tests/components/humidifier/test_init.py
+++ b/tests/components/humidifier/test_init.py
@@ -1,12 +1,9 @@
 """The tests for the humidifier component."""
 
-from enum import Enum
-from types import ModuleType
 from unittest.mock import MagicMock
 
 import pytest
 
-from homeassistant.components import humidifier
 from homeassistant.components.humidifier import (
     ATTR_HUMIDITY,
     ATTR_MODE,
@@ -20,13 +17,7 @@ from homeassistant.components.humidifier import (
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ServiceValidationError
 
-from tests.common import (
-    MockConfigEntry,
-    MockEntity,
-    help_test_all,
-    import_and_test_deprecated_constant_enum,
-    setup_test_component_platform,
-)
+from tests.common import MockConfigEntry, MockEntity, setup_test_component_platform
 
 
 class MockHumidifierEntity(MockEntity, HumidifierEntity):
@@ -60,37 +51,6 @@ async def test_sync_turn_off(hass: HomeAssistant) -> None:
     assert humidifier.turn_off.called
 
 
-def _create_tuples(enum: type[Enum], constant_prefix: str) -> list[tuple[Enum, str]]:
-    return [(enum_field, constant_prefix) for enum_field in enum]
-
-
-@pytest.mark.parametrize(
-    "module",
-    [humidifier, humidifier.const],
-)
-def test_all(module: ModuleType) -> None:
-    """Test module.__all__ is correctly set."""
-    help_test_all(module)
-
-
-@pytest.mark.parametrize(
-    ("enum", "constant_prefix"),
-    _create_tuples(humidifier.HumidifierEntityFeature, "SUPPORT_")
-    + _create_tuples(humidifier.HumidifierDeviceClass, "DEVICE_CLASS_"),
-)
-@pytest.mark.parametrize(("module"), [humidifier, humidifier.const])
-def test_deprecated_constants(
-    caplog: pytest.LogCaptureFixture,
-    enum: Enum,
-    constant_prefix: str,
-    module: ModuleType,
-) -> None:
-    """Test deprecated constants."""
-    import_and_test_deprecated_constant_enum(
-        caplog, module, enum, constant_prefix, "2025.1"
-    )
-
-
 def test_deprecated_supported_features_ints(caplog: pytest.LogCaptureFixture) -> None:
     """Test deprecated supported features ints."""