Abstract: An air filtering assembly for use with oxygen concentrating equipment, the assembly including a filter containment housing, a cover therefore, and a filter support and divider provided therein. A filter rests upon the divider, and below the divider are a series of baffles, that provide a circuitous path for the filtered air to flow, to effect sound dampening, during usage of this filter assembly in combination with the concentrator of an oxygen concentrating apparatus.