The Kiosk can be set up to allow or disallow system and app notifications. You have the option to set up your device to display only the information you allow. For more details please refer to the following:
Please head to your AdminConsole and find the Kiosk tab.
Look for Config File > Create new or edit an existing file
Find the Kiosk Launcher > Notification Center & Screen Rotation > Toggle ON the Notification Center and Allow USB Notification (Beta)
For the complete instructions on setting up your Kiosk device, please refer to this article:
How to set up your Kiosk for AirDroid Business?