The Clear Inlet Filter can be used to replace the original gray Long Life Filter inside the Rear Access Door on all Millennium Oxygen Concentrators. A blue silencer cap is included to improve noise reduction.
Usage Information: The Clear Inlet Filter should always be used with a Pre-Inlet Filter (sold elsewhere on this site) to improve filtration levels. The Clear Inlet Filter is not designed to be cleaned. It should be replaced as necessary, on average once a year.