received by the International Bureau on 29 February 2016 (29.02.2016)

1 .-8. Canceled

9. A face mask assembly comprising:

a face mask to cover a user's nose and at least, partially cover a user's mouth and configured to deliver oxygen to a user, the face mask including:

a wall, the wall including a reservoir adapted to contain a pocket of gas adjacent a user's nose;

an oxygen port formed through the wall and configured connect to a source of oxygen and configured to deliver oxygen to the reservoir;

a non-circular sampling port formed through the wall in fluid communication with the reservoir;

a non-circular engagement portion surrounding the sampling port in the wall of the mask;

a single-piece first mask connector configured to connect to the sampling port, the first mask connector having:

a first end configured to connect to a mating connector and to be external to the mask;

an external flange distal to the first end and configured to appose an outer surface of the wall of the mask;

a non-circular neck region distal to the external flange and configured to appose the engagement portion to prevent rotation of the first mask connector relative to the face mask;

a second end distal to the neck region; and

a first longitudinal channel continuous from the first end to the second end; and

a facial access opening formed in the wall and located in the reservoir superior to the oxygen port in the wall and sized lo provide access lo a user's mouth and nose.

10. The face mask assembly of claim 9 wherein the first mask connector includes an internal flange distal to the neck region of the first mask connector and configured to appose a portion of an inside of the mask wall and is configured to minimize outward longitudinal movement of the first mask connector relative to the rest of the mask.

11. The face mask assembly of claim 10 wherein the internal flange comprises a non-circular cross-sectional shape.

12. The face mask of claim 11 wherein the sampling port, the neck region and the internal flange comprise substantially ellipsoid cross-sectional shapes.

13. The face mask of claim 1 1 wherein an outer footprint of the internal flange is smaller than an outer footprint of the sampling port and wherein the neck region does not substantially rotate relative to the mask when the first mask connector is in place in the sampling port.

14. The face mask assembly of claim 9 further comprising an adhesive material configured lo hold the external flange of the first mask connector and an outer wall portion of the mask together.

15. The face mask assembly of claim 9 wherein the sampling port is a first port and the mating connector is a first mating connector, the face mask further comprising a non-circular second sampling port configured to connect to a single-piece second mask connector, the second mask connector configured to connect to a second mating connector, wherein the second sampling port and second mask connector arc on an opposing side of a midline of the face mask from ihe first sampling port and first mask connector; the second mask connector having:

a first end configured to connect to the second mating connector and to be external to the face mask; an external flange distal to the first end and configured to appose an outer surface of the wall of the mask;

a non-circular neck region distal to the external flange and configured to appose a second engagement portion to prevent rotation of the second mask connector relative to the face mask;

a second end distal to the neck region; and

a first longitudinal channel continuous from the first end to the second end.

16. The face mask assembly of claim 9 wherein the first mask connector comprises a first luer connector, the assembly further comprising a mating luer connector having a second longitudinal channel, wherein the first luer connector and the mating luer connector are configured to be connected together to thereby form a continuous longitudinal channel from the first longitudinal channel to the second longitudinal channel.

17. The face mask assembly of claim 9 wherein the facial access opening is sized to accommodate a surgical, diagnostic, or other device or even a caregiver's fingers or hands.

1 8. The face mask assembly of claim 17 wherein the facial access opening is sized to accommodate a scope or other device is inserted into the user's mouth or nose.

19. The face mask assembly of claim 17 wherein the facial access opening is sized ιο accommodate an endoscope or an echocardiogram probe.

20. A face mask to cover a user's nose and at least partially cover a user's mouth and configured to deliver oxygen to a user, the face mask comprising:

a wall, the wall including a reservoir adapted to contain a pocket of gas adjacent a user's nose; an oxygen port extending through the wall that is capable of providing fluid communication through the wall and to the pocket of gas in the reservoir;

a first sampling port extending through the wall in fluid communication with the pocket of gas in the reservoir;

an engagement portion around the sampling port; and

a first mask connector configured to connect to the first sampling port, the first mask connector having:

a first end configured to connect to a mating connector and to be external to the mask;

an external flange distal to the first end and configured to appose an outer surface of the wail of the mask;

a non-circular neck region distal to the external flange and configured io appose the engagement portion to prevent rotation of the first mask connector relative to the face mask;

a second end distal to the neck region; and a first longitudinal channel continuous from the first end to the second end;

an internal flange distal to the neck region and configured to appose a portion of an inside of the wall and to minimize outward longitudinal movement of the first mask connector relative to the rest of the mask, the internal flange having a non-circular cross-sectional shape and an outer footprint that is smaller than an outer footprint of trie first sampling port; and

a facial access opening formed in the wall at the reservoir and located superior to the oxygen port in the wall and sized to provide access to a user's mouth and nose.

21 . The face mask of claim 20 further comprising a second sampling port having a non-circular cross-sectional shape, wherein the first and second sampling ports arc on opposing sides of a midline of the face mask.

22. The face mask of claim 20 wherein the reservoir includes an anterior, superior inner surface that is superior to the facial access opening and is structured to direct oxygen from the oxygen port to the user's nose.

23. The face mask of claim 22 wherein the oxygen port is oriented in the wall to direct oxygen from the oxygen port past the facial access opening to the anterior, superior surface of the reservoir.