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> System Settings, then click Notifications 
on your Mac.Click Home or a room in the sidebar.
Depending on the appearance of the accessory tile, do one of the following.
If the accessory tile is solid: Click the accessory’s icon in the tile to turn on or off the accessory (a delay of 8 seconds allows you to undo your action by clicking again). Control-click or Apple Support article: Get notifications for your HomeKit accessories