The ornamental design for a “dual pressure portable air compressor,” as shown and described.
FIG. 1 is a left side perspective view of the dual pressure portable air compressor, showing the present invention.
FIG. 2 is a right side perspective view thereof;
FIG. 3 is left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is rear elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The “dual pressure portable air compressor” design is characterized as a portable air compressor that delivers two air flows simultaneously at different pressures.