FIG. 1 shows a bottom, front, and side perspective view of a humidification chamber seal embodying our design, with portions shown in dashed lines and not forming part of the claimed design;
FIG. 2 shows a top, front, and side perspective view thereof;
FIG. 3 shows a bottom view thereof;
FIG. 4 shows a top view thereof;
FIG. 5 shows a front view thereof;
FIG. 6 shows a rear view thereof;
FIG. 7 shows a side view thereof;
FIG. 8 shows another side view thereof;
FIG. 9 is a cross-sectional view thereof taken along the 9-9 line of FIG. 3; and,
FIG. 10 is a cross-sectional view thereof taken along the 10-10 line of FIG. 3.
Broken lines are used to illustrate portions of the humidification chamber seal that form no part of the claimed design.