Before you can connect Google Assistant with Toshiba Air Purifier devices, please kindly follow below steps:
1. Download "Toshiba HA" app from Google Play or App Store;
2. Sign up or sign in with your Toshiba HA account;
3. Setup the device with your "Toshiba HA" app, and make sure you can control it by the app;
4. Search "Toshiba HA" action and account link it
5. When setup is ready, try ask Hey Google to control your Air Purifiers