A medium is carried to a predetermined position in a carrying direction. 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. Also provided are techniques for booting and provisioning a platform connected to a boot and provisioning server, wherein the platform includes a platform boot and provisioning system.