FIG. 1 is a top left back perspective view of a therapy gas delivery device;
FIG. 2 is a front top right perspective view of a therapy gas delivery device;
FIG. 3 is a front view of a therapy gas delivery device;
FIG. 4 is a top view of a therapy gas delivery device;
FIG. 5 is a back view of a therapy gas delivery device;
FIG. 6 is a bottom view of a therapy gas delivery device;
FIG. 7 is a right view of a therapy gas delivery device;
FIG. 8 is a left view of a therapy gas delivery device;
FIG. 9 is a top left back perspective view of a second embodiment of a therapy gas delivery device;
FIG. 10 is a front top right perspective view of a therapy gas delivery device;
FIG. 11 is a front view of a therapy gas delivery device;
FIG. 12 is a top view of a therapy gas delivery device;
FIG. 13 is a back view of a therapy gas delivery device;
FIG. 14 is a bottom view of a therapy gas delivery device;
FIG. 15 is a right view of a therapy gas delivery device;
FIG. 16 is a left view of a therapy gas delivery device;
FIG. 17 is a top left back perspective view of a third embodiment of a therapy gas delivery device;
FIG. 18 is a front top right perspective view of a therapy gas delivery device;
FIG. 19 is a front view of a therapy gas delivery device;
FIG. 20 is a top view of a therapy gas delivery device;
FIG. 21 is a back view of a therapy gas delivery device;
FIG. 22 is a bottom view of a therapy gas delivery device;
FIG. 23 is a right view of a therapy gas delivery device; and,
FIG. 24 is a left view of a therapy gas delivery device.
The broken lines in the drawings depict unclaimed environment and form no part of the claimed design.