NOERDEN LIZ Manuel D'utilisation page 13

Automatic protection
If the lid is opened during the sterilization process, the
bottle will automatically turn on safe mode to prevent
ultraviolet (UV) rays from causing you any harm. The
lid's LED will flash red to signal the UV sterilization
function has been automatically turned OFF.
CAUTION: If the smart lid's safety mode fails due to
improper operation, do not look directly into the UV
light to avoid irritating the eyes and skin, or other
potential harm. If this occurs, you may tap the center of
the lid twice to stop the sterilization process before it is
completed.
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