The present invention relates to an apparatus (10) for providing a patient (12) with personalized advice (56) relating to a use of a patient interface (18) for providing a flow of breathable gas and/or to a use of a pressure support system (14) comprising such a patient interface (18), the apparatus (10) comprising: a receiving unit (32) for receiving (i) a virtual model of at least a part of a head of the patient (12), (ii) technical data relating to a technical design and functionality of the patient interface (18) and/or of the pressure support system (14), and (iii) usage data including information on how the patient (12) is using the patient interface (18) and/or the pressure support system (14)； and an advice unit (36) for generating the personalized advice (56) on how to improve the use of the patient interface (18) and/or of the pressure support system (14) based on the virtual model, the technical data and the us age data.
