Philips System One 50 & 60 Series CPAP Filters 2pk

Philips CPAP filters two pack are dark grey/black reusable foam filters x 2. They have been designed to be used with the Philips Respironics PR System One 60 Series, PR SystemOne 50 Series, PR SystemOne REMstar SE, and M-Series REMstar CPAP & BiPAP CPAP machines. For optimal performance your Philips System One CPAP foam filters should be washed monthly and replaced every 12 months or as needed.