$34 - $59


Prescription required (Learn More)This product requires a prescription. We must have a valid prescription on file before we can ship this product. After ordering, we'll send you a secure link with instructions on uploading your prescription to the ResMed Shop, or sharing your doctor's contact information.

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Product highlights

Exclusive to AirMini™, HumidX™ and HumidX Plus cartridges are designed to retain moisture and humidify the air you breathe to provide a quality therapy experience.


  • HumidX and HumidX Plus cartridges are small heat and moisture exchangers that provide you comfort and effective humidification for most climates and sleep environments. Cartridges should be replaced after 30 days of use and are not suitable for washing.

    HumidX is ResMed's standard waterless humidification system, suitable for most climates. HumidX Plus is intended for use in dry and high altitude environments where humidity is low (e.g. airplane cabins).

  • SKUs offered: 38809, 38810, 38812, 38813

Compatible masks

  • HumidX and HumidX Plus are only compatible with the P10 nasal pillows, N20 and N30 nasal masks.

    Please note HumidX and HumidX Plus are NOT compatible with the F20 or F30 full face masks.

Shipping & returns

  • Free ground shipping on all orders over $50
  • Standard Return Policy: You may return this product within 30 days of the date that the product is delivered to you if the product is in original, unopened condition. See our Return Policy for more details.

Ratings and reviews

The AirMini is so convenient. I wish I hadn’t waited so long to buy one!

Dana A.

I just returned from my first trip, a two-week stay in the UK, with my new AirMini.

The AirMini was light and easy to carry, simple to use, and it worked like a champ.

I absolutely love it.

Beverly B.

Two words: Game. Changer.

I absolutely love it and it’s so easy to travel with.

Ryan D.