Philips Respironics Ultra-fine filter, disposable (6 per pack) (1029331)
The Philips Respironics Ultra-fine filter uses electrostatically charged surfaces to attract fine particles such as bacteria and viruses and is compatible with the System One and M Series CPAP Machines. These filters are essential for the safety of the sleep apnea therapy patient and are designed to be disposable so that they can be easily discarded after use. For maximum effectiveness, the filter should be changed every 1-3 months. Includes 6 disposable filters.