The present invention relates to a patient interface device (10) comprising a sealing assembly (12) for delivering a flow of breathable gas to a patient (16),an attachment assembly (14) for attaching the sealing assembly (12) to a patient's face (18) and a force limitation unit (26)for limiting a force between the patient interface device(10) and the patient's face (18) to a maximum force when the patient interface device (10) is applied to the patient (16), the force limitation unit (26) comprising a first and a second coupling element (27, 28) constituting a self-releasing force-fitted coupling for transmitting the force from the first to the second coupling element (27, 28) and for interrupting the force-fit between said two coupling elements (27, 28) when the force exceeds the maximum force.
