Unobtrusive nasal mask

-23. (canceled)

A patient interface for delivering breathable gas to a patient, the patient interface comprising:

• a sealing portion including a nose tip engagement portion adapted to form a seal with the patient's nose tip, an upper lip engagement portion adapted to form a seal with the patient's upper lip and/or base of the patient's nares, and nostril engagement flaps adapted to form a seal with the patient's nares;
• and
• a supporting portion supporting one or more portions of the sealing portion, wherein the supporting portion supports different portions of the sealing portion with varying degrees of support.

-30. (canceled)

A patient interface for delivering breathable gas to a patient, the patient interface comprising:

• a sealing portion including a nose tip engagement portion adapted to form a seal with the patient's nose tip, an upper lip engagement portion adapted to form a seal with the patient's upper lip and/or base of the patient's nares, and nostril engagement flaps adapted to form a seal with the patient's nares;
• and
• a supporting portion supporting the sealing portion, the sealing portion being connected to the supporting portion on side portions of the sealing portion, and the sealing portion being spaced apart from the supporting portion on front and rear portions of the sealing portion.

-35. (canceled)

A patient interface for delivering breathable gas to a patient, the patient interface comprising:

• a sealing portion including a nose tip engagement portion adapted to engage with the patient's nose tip;
• and
• a supporting portion supporting the sealing portion, the supporting portion being connected to the sealing portion on two side portions of the sealing portion, and the supporting portion being spaced apart by a gap from the sealing portion at the nose tip engagement portion, the nose tip engagement portion being adapted to stretch to fit and seal with the patient's nose tip.

(canceled)

-166. (canceled)

A patient interface for delivering pressurized breathable gas to a patient, the patient interface comprising a sealing portion adapted to form a seal with the patient's face, the sealing portion having an opening adapted to receive the pressurized breathable gas, an outer sealing margin to seal with the patient's face, and a transition region between the opening and the outer sealing margin that gradually increases in size from the opening to the outer sealing margin.

-177. (canceled)