Small Intake Filters for Rhythm TOC3 Portable Oxygen Concentrators Multibuy:25 Filter Pack It is compatible with all

It is compatible with all H4i Heated Humidifiers as well as HumidAire 3i (H3i) Heated Humidifiers that have been upgraded using the H4i Flip-Top Lid with Seal (Part 26953) or the H3i-to-H4i Upgrade Kit

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

irritation-free seal

A check valve is included free as well

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

Small Intake Filters for Rhythm TOC3 Portable Oxygen Concentrators Multibuy:25 Filter Pack It is compatible with allThis 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.