Small Intake Filters for Rhythm TOC3 Portable Oxygen Concentrators Multibuy:25 Filter Pack A check valve is included

A check valve is included free as well

These batteries are designed for use with all X-PLOR Portable Oxygen Concentrators

Constructed entirely of soft cloth the SleepWeaver Advance is Latex & Silicone Free so it's ideal for allergy sufferers

The OptiChamber Diamond valved holding chamber (VHC) is smaller than most conventional VHC's and incorporates a stepped mouthpiece

Nova Micro's soft silicone pillows inflate gently to conform to your nasal contours for unmatched comfort

Small Intake Filters for Rhythm TOC3 Portable Oxygen Concentrators Multibuy:25 Filter Pack A check valve is includedThis Small Intake Filter, from Rhythm Healthcare, is designed for use with all TOC3 Portable Oxygen Concentrators. The filter, along with the Large Intake Filter available elsewhere on this site, helps to block dirt and dust particles from entering your concentrator's air intake.