The ornamental design for a volumecombattachment for a hair dryer, as shown and described.
FIG. 1 is a right side elevational view of a volume comb attachment for a
hair dryer showing my new design, the left side being a mirror image of
the side shown;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a bottom plan view thereof; and,
FIG. 4 is a top plan view thereof.
The broken line showing of the hair dryer and projections visible in the
plan views is for illustrative purposes only and forms no part of the
claimed design.