Oxygen concentrator

Description

FIG. 1 is a perspective view of an oxygen concentrator;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a rear elevational view of FIG. 1;

FIG. 4 is a right side elevational view of FIG. 1;

FIG. 5 is a left side elevational view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1; and,

FIG. 7 is a bottom plan view of FIG. 1.

The broken line showing in the drawings depicts portions of the oxygen concentrator that form no part of the claimed design.

Claims

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