Oxygen Concentrator

FIG. 1 is a front perspective view of an oxygen concentrator, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right-side elevational view thereof;

FIG. 5 is a left-side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a rear perspective view thereof;

FIG. 9 is an enlarged detail view of the area labeled 9 in FIG. 2 ; and,

FIG. 10 is an enlarged detail view of the area labeled 10 in FIG. 8 .

The dash-dash broken lines in the drawings depict portions of the oxygen concentrator that form no part of the claimed design. The dot-dash broken lines in the drawings denote the boundaries of the enlarged detail views and form no part of the claimed design.