Google Assistant can be disconnected from your Dyson account and machines from the Google Home app.
Simply open the Google Home app and tap the machine you wish to remove. Then tap the settings icon in the top right and select "Unlink Dyson".
Removing this Dyson machine from a Google Home app will:
- Disconnect the device from members in the home.
- Un-link it from your Google Account.
- Delete any data associated with this device. Note: Some basic device data may remain associated with the home.