The Clear Inlet Filter can be used to replace the original gray Long Life Filter inside the Rear Access Door on all Millennium O2 .

The Clear Inlet Filter should always be used with a Pre-Inlet Filter 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.

COMPATIBILITY: This clear inlet filter can be used to replace the existing inlet filter in a variety of o2  including the following filter part numbers: H620 for Respironics Millennium ; H620 for Covidien Nellcor Puritan Bennet 492, 492A, 590, 592A ; 100-6631-00 for Healthdyne Alliance and BX5000 , H620 for  DeVilbbiss Pure , and RP-213 for Chad Total O2 .

NOTE: This filter was originally supplied with a blue silencer cap for added noise reduction; however that accessory has been discontinued and is no longer available from the manufacturer.