On iOS or iPadOS, select Settings. On the left panel of the Settings window scroll way down to the Applications section. You should see the ASIAIR app there along with your other apps.
Tap on the ASIAIR app and its settings should appear on the right side of the iOS Settings window.
Turn the Local Network switch on in ASIAIR's settings.
If it is already on, and you still don't see any ASIAIR hardware, the ASIAIR hardware may not be connected to your home network.
See if you can walk within 1 meter of the ASIAIR and go to iOS WiFi Settings to see if you can see the ASIAIR Hotspot. If you can, choose the ASIAIR hotspot and try connecting the ASIAIR app again to the ASIAIR hardware. If you are successful, you can now check if the ASIAIR is connected as STN mode, or directly to the router's LAN.
Chen