These ultra fine filters (which may come in yellow or blue) are designed for use with all Puresom, Zzz-PAP, and ComfortPAP machines. Ultra fine filters are disposable; for optimal performance they should be changed regularly when they appear soiled or discolored.
USAGE: This ultra fine filter should be placed into the filter well of your machine BEFORE the foam filter is installed. The foam filter should be placed over it in the filter well.
DIMENSIONS: Approximately 1.375 Inches by 1.1875 Inches.
COMPATIBILITY: Puresom CPAP Machine, Zzz-PAP CPAP Machine, ComfortPAP Auto-CPAP Machine
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