HumidX F20

$41 - $74

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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.

Free ground shipping

90-day manufacturer's warranty

Sleep advisor support

Product highlights

Exclusive to AirMini™, HumidX™ F20 is ResMed’s standard waterless humidifcation system, designed to retain moisture and humidify the air you breathe.


  • HumidX F20 is ResMed’s standard waterless humidification system made specifically for the F20 full face mask. It captures heat and moisture to provide comfort and effective humidification for most climates and sleep environments. Cartridges should be replaced after 30 days of use and not suitable for washing.
  • SKUs offered: 38012, 38013

Compatible masks

  • HumidX F20 is only compatible with the F20 full face mask.

    Please note HumidX F20 is NOT compatible with the P10 nasal pillows, N20 and N30 nasal, 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.