How can I know the status of the filter?

Create an account on our website and use the reminder at the top of the case to indicate the date to install the new replacement cartridge. This will tell you what day to put it on, so we recommend changing it after 3 months.
Another way to do this is to put the date you need to replace 3 months later. Numbers refer to the month of the year, and small lines refer to the week of the month.