The ornamental design for a portable cpaphosesanitizer, as shown and described.
FIG. 1 is a perspective view of a portable CPAP hose sanitizer showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines in the drawings are for the purpose of illustrating portions of the portable CPAP hose sanitizer that form no part of the claimed design.