Oxygen Concentrator

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.