The Disposable White Ultrafine Filters for PR System One, 60 Series and SleepEasy Machines is a package of 50 ultrafine filters for use with machines by Philips Respironics. These filters do NOT have a tab. This is a (50) pack of disposable ultrafine filters that are compatible with the following Philips Respironics machines:
- All PR System One Series
- All PR System One 60 Series
- SleepEasy II
**CPAP machine filters keep dust and debris from getting into the CPAP motor. Replace filters at least every 90 days!**
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