If the light on the unit isn't turning on, there could be a couple of things going on:
- The battery is out of power. If this is the case, you should not be able to see any mist after exhale.
- Wiring went bad in the unit. If you still see mist, you can still use the unit, the light just won't work.
If you ordered your device less than 2 weeks ago, please contact firstname.lastname@example.org and we would be happy to send you a replacement.