Sauna box

[0001]FIG. 1 is a first perspective view of a sauna box showing my new design;

[0002]FIG. 2 is a second perspective view thereof;

[0003]FIG. 3 is a front view thereof;

[0004]FIG. 4 is a back view thereof;

[0005]FIG. 5 is a left side view thereof;

[0006]FIG. 6 is a right side view thereof;

[0007]FIG. 7 is a top view thereof;

[0008]FIG. 8 is a bottom view thereof;

[0009]FIG. 9 is an opening state of the sauna box thereof; and,

[0010]FIG. 10 is an enlarged view of the selected portion 10 in FIG. 1.

[0011]The broken lines shown in the drawings depict portions of the sauna box that form no part of the claimed design.