diff --git a/homeassistant/components/zha/binary_sensor.py b/homeassistant/components/zha/binary_sensor.py
index 48fbf1f0bb2..50cfb783370 100644
--- a/homeassistant/components/zha/binary_sensor.py
+++ b/homeassistant/components/zha/binary_sensor.py
@@ -265,6 +265,7 @@ class ReplaceFilter(BinarySensor, id_suffix="replace_filter"):
 
     SENSOR_ATTR = "replace_filter"
     _attr_device_class: BinarySensorDeviceClass = BinarySensorDeviceClass.PROBLEM
+    _attr_entity_category: EntityCategory = EntityCategory.DIAGNOSTIC
     _attr_name: str = "Replace filter"
 
 
diff --git a/homeassistant/components/zha/sensor.py b/homeassistant/components/zha/sensor.py
index 49ba46038f9..0e520d98b52 100644
--- a/homeassistant/components/zha/sensor.py
+++ b/homeassistant/components/zha/sensor.py
@@ -968,6 +968,7 @@ class IkeaDeviceRunTime(Sensor, id_suffix="device_run_time"):
     _attr_icon = "mdi:timer"
     _attr_name: str = "Device run time"
     _attr_native_unit_of_measurement = UnitOfTime.MINUTES
+    _attr_entity_category: EntityCategory = EntityCategory.DIAGNOSTIC
 
 
 @MULTI_MATCH(cluster_handler_names="ikea_airpurifier")
@@ -980,6 +981,7 @@ class IkeaFilterRunTime(Sensor, id_suffix="filter_run_time"):
     _attr_icon = "mdi:timer"
     _attr_name: str = "Filter run time"
     _attr_native_unit_of_measurement = UnitOfTime.MINUTES
+    _attr_entity_category: EntityCategory = EntityCategory.DIAGNOSTIC
 
 
 class AqaraFeedingSource(types.enum8):