Oxygen concentrator

Description

FIG. 1 is a front, right, and top perspective view of a first embodiment of an oxygen concentrator, showing my new design;

FIG. 2 is a rear, left, and bottom 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.

FIG. 9 is a front, right, and top perspective view of a second embodiment of an oxygen concentrator, showing my new design;

FIG. 10 is a rear, left, and bottom perspective view thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a rear elevational view thereof;

FIG. 13 is a left side elevational view thereof;

FIG. 14 is a right side elevational view thereof;

FIG. 15 is a top plan view thereof; and,

FIG. 16 is a bottom plan view thereof.

The broken lines depict portions of the article that form no part of the claimed. design.

Claims

The ornamental design for an oxygen concentrator, as shown and described.