Patent ID: 11890568
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Chemical engineering (Chemistry)
Classification: CPC B  F  G | IPC B  F  G

Claim 11:
12. An air purifier system, comprising:
a removable filter, wherein the removable filter is able to filter a plurality of different pollutants according to a type of the removable filter;
a machine readable identifier attached to the removable filter that stores type information indicating the type of the removable filter for removing a target pollutant and storing a performance profile indicating performance, over a period of time, of the type of the removable filter for filtering the target pollutant from the plurality of different pollutants, wherein the indication of the performance comprises a combination of a cumulative air flow and a cumulative amount of the target pollutant through the removable filter over the period of time, and further wherein, the indication of the performance is used in an estimation of a lifetime of the removable filter for the target pollutant;
a reader circuit configured to read the type information and the performance profile from the machine readable identifier;
a write circuit configured to update the performance profile stored on the machine readable identifier over the period of time as the air purifier filter removes the target pollutant; and
a controller configured to receive the type information and the performance profile from the reader circuit, to predict an end of life of the removable filter based on the received type information and the received performance profile for the target pollutant, and to notify a user via a user interface when to change the removable filter based on the predicted end of life of the removable filter.