| Two of the replacement white ultra-fine pollen filters that are used by the Respironics REMstar Basic M-Series, REMstar Plus, REMstar Pro and REMstar Auto M-Series CPAP machines, and the BiPAP Plus and BiPAP Auto M-series BiLevel machines. Also used in the Respironics SleepEasy CPAP machines.
Total of two filters per pack. *** These filters fit the new M-Series CPAP machines, and they measure approximately 1 inch x 1 3/4 inches.
| These filters fit the M-Series machines that look like this: |  | NOT the older style REMstar and BiPAP machines that look like this: |  |
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