ResMed AirMini HumidX Standard

The ResMed AirMini HumidX Standard is a waterless heat and moisture exchanger (HME) designed to add moisture to the air delivered by the AirMini travel CPAP machine. It's a disposable cartridge that inserts directly into the airflow path between the machine and your mask — no water tank required.

Is the HumidX Standard Right for You?

This is the right pick if you use an AirMini in a typical home or travel environment and want waterless humidification without carrying a water tank. If you travel to very dry or high-altitude climates and need stronger humidification, the HumidX Plus is designed specifically for those conditions. If you use the AirMini F20 full-face mask, this Standard version is not compatible — you'll want the HumidX F20 instead.

Key Features at a Glance

• Waterless HME humidification — no water tank, no rainout
• Disposable cartridge inserts into the hose between the AirMini and your mask
• Suitable for most climates and everyday sleep environments
• Lightweight and portable — built for travel
• Easy to replace on a routine schedule
• Compatible with N20 and P10 mask connectors

How the HumidX Standard Works

As you exhale, the HumidX captures heat and moisture from your breath. On your next inhale, it releases that captured heat and moisture back into the airflow, humidifying the air you breathe without any added water. It's a simple, passive exchange rather than an active heating system, which is why it's well suited to travel and portable CPAP setups where a traditional heated humidifier isn't practical.

Why Choose Waterless Humidification

No Water Tank to Pack or Spill

Traveling with a water-based humidifier means carrying (and potentially spilling) a water chamber. The HumidX eliminates that entirely, which is part of why it's built specifically for the AirMini's compact, travel-first design.

Suitable for Most Everyday Climates

The Standard HumidX is designed to work well in typical home and travel environments. It may be less effective in very dry or cold climates — if that describes where you're headed, the HumidX Plus offers stronger humidification for those conditions.

Helps With Dryness, Not a Cure-All

If you experience dry mouth or dry nasal passages during AirMini therapy, the HumidX Standard is a convenient way to add moisture back into the air you're breathing. Reducing that dryness and throat irritation can improve overall comfort during the night, which in turn supports more consistent use of your therapy.

How to Use

1. Insert the HumidX Standard into the hose connection point between your AirMini and mask.
2. Connect your mask as usual.
3. Start therapy — the HumidX begins working automatically with each breath, no settings to adjust.

Replacement

Replace the HumidX Standard every 30 days, or sooner if it becomes visibly dirty or damaged.

Important Compatibility Notes

• Not compatible with the AirMini F20 mask — see the HumidX F20 instead
• Should not be used with heated hoses
• Compatible with N20 and P10 mask connectors

Specifications

HumidX Standard vs. HumidX Plus vs. HumidX F20

ResMed makes three HumidX variants, and picking the wrong one is a common mix-up: the Standard (this listing) is built for typical climates and works with N20/P10 connectors; the HumidX Plus is designed for dry or high-altitude environments where you need stronger humidification; and the HumidX F20 is the only version compatible with the AirMini F20 full-face mask. None of these are interchangeable with the others, so it's worth confirming your mask and typical climate before ordering.

Complete Your AirMini Setup

Using the F20 full-face mask instead? See the HumidX F20 or the AirMini F20 Setup Pack with HumidX F20. Traveling somewhere dry? Compare the HumidX Plus. Round out your setup with the AirMini Filter and AirMini Tubing. Browse all AirMini Masks, or see more from the brand on the ResMed brand page.

Frequently Asked Questions

Will this work with my AirMini F20 mask?

No. The HumidX Standard is not compatible with the AirMini F20 mask. Use the HumidX F20 instead.

What's the difference between HumidX Standard and HumidX Plus?

Both use the same waterless HME technology. The Standard is built for typical, everyday climates, while the Plus is designed to add more moisture for dry or high-altitude environments.

How often do I need to replace it?

Every 30 days, or sooner if it becomes visibly dirty or damaged.

Can I use this with a heated hose?

No. The HumidX Standard should not be used with heated hoses.

What mask connectors is this compatible with?

N20 and P10 connectors. It is not compatible with the AirMini F20 mask.

Do I need to add water to this?

No. The HumidX is a waterless heat and moisture exchanger — it captures and returns moisture from your own breath rather than using an added water source.

Do I need a prescription to buy this?

No. This accessory does not require a prescription. A prescription is only needed for CPAP masks and machines.