Patent ID: 8387616

Claim:
A respiratory mask assembly for delivering breathable gas to a patient comprising: a mask frame comprising a left first connector portion and a right first connector portion, each first connector portion including a retaining structure retaining a magnet; a mask cushion attached to the mask frame; a headgear assembly comprising a left second connector portion and a right second connector portion adapted for interconnection with said left and right first connector portions of the mask frame, respectively, each of said left and right second connector portions having a magnet, wherein, once the left and right second connector portions are magnetically connected with the left and right first connector portions, they are locked or constrained against rotation such that they may not rotate relative to one another, wherein each of the first connector portions comprises a bore adapted to receive one of said magnets of said second connector portions, said second connector portions moving axially relative to said bore during assembly and disassembly.