M Series Filter assembly Cover
Hidden in the assembly is a filter behind the two small rectangle openings. This filter eventually plugs with dust. My insurance company supplier did not even know this filter existed. CPAP-Supply was able to get the this part with filter. I learned the filter needed to be cleaned every 6 months. With this part it was a simple exchange. Thank you CPAP-Supply for stocking this part.
Reviewed by: Keith from Oregon on 2/11/2016