Thank you so much for being a customer of Pura
We are currently working on an update within the app that will automatically notify you when the fragrances are running low. However, in the meantime the easiest way to know if your fragrances are running low is by removing the lid to the device and physically checking the level of the fragrance in the vial! We are excited for the updates in the works! :)
If you have any additional questions, please reach out to our Customer Support team on our chat or by email at firstname.lastname@example.org.