HumidAire 3i™ to H4i™ Humidifier Upgrade Kit - DISCONTINUED


1 Total Reviews

  • For Reference:Discontinued 2012-12-21
  • Brand:ResMed
  • Part Numbers:26959

This HumidAire 3i to H4i Conversion Kit allows new H4i water chambers to be used with older HumidAire 3i heated humidifiers. WIth the Conversion Kit you get the convenience of added water capacity and the compatibility with the new Long Life H4i Chambers.

Each kit includes a new flip top cover, seal, cleaning plug and standard H4i water chamber. The kit fits very quickly and easily onto any HumidAire 3i (H3i) Heated Humidifier and is a one time purchase.

Resources: HumidAire 3i to H4i Upgrade Instructions (PDF)

Usage Information: Once you've upgraded your HumidAire 3i with the Conversion Kit you should purchase H4i chambers for all future chamber replacement needs.


  • For Reference:Discontinued 2012-12-21
  • Manufacturer:ResMed
  • Part Numbers:26959
  • HCPCS Codes:A7046
  • FLEX SPENDING:Can be purchased with FSA & HSA Cards
  • HumidAire 3i


    I've had my cpap for over 5 years and it was time to replace the humidifier section. This kit replaces only the parts that come in direct contact with the water and moisture. Saved me $200+ dollars vs replacing the entire unit. Works great and fit the older unit like a glove. Highly recommend.
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