Transcend Replacement AirMist Cartridges

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The Transcend AirMist HME (Heat Moisture Exchanger) provides pass over humidification for use with your CPAP therapy.


With its compact and lightweight design, the Transcend AirMist HME seamlessly integrates with any CPAP. It’s incredibly easy to install and fits perfectly into your existing setup, without the need for additional adapters or complicated adjustments. Simply attach it to your CPAP device, and you’re ready to experience the next level of comfort.


  • Waterless Humidification System designed for Transcend Micro
  • Connects to all CPAP masks with 22mm connections
  • Universal connections can be used with any CPAP when heated humidification is not available
  • Replaceable cartridges typically good for 5-7 days once opened
  • Contains 4 AirMist cartridges


To Install your AirMist HME Adapter and AirMist HME Cartridge: 


  1. Remove the HME cartridge from the foil package. Handle by the plastic shroud, not the foam core.
  2. Unscrew the HME adapter bottom from the HME adapter top and place the HME cartridge inside the HME adapter bottom.
  3. Place the HME adapter top onto the HME adapter bottom and gently turn the top until the adapter compresses together on the HME cartridge.
  4. Securely attach the HME adapter bottom to your hose.
  5. Securely attach the HME adapter top to your mask.


The AirMist HME Cartridge is not cleanable and should be replaced after five to seven days of use. 


The AirMist HME Adapter should be cleaned after every week of use, or whenever you replace your AirMist HME Cartridge.