Comparison
AirFit N30 or AirFit N30i?
Two ResMed nasal masks that sit under the nose, with nothing on the bridge and no magnets. The N30 connects the tube at the front of the mask and weighs 45 g. The N30i routes it over the top of the head and comes in two frame sizes. Declared noise at one meter: 18 dBA for the N30 with the QuietAir frame, 14 dBA for the N30i.
Updated September 16, 2026
Light, minimalist under-nose nasal mask
The AirFit N30 is a ResMed nasal mask with a silicone cushion that sits under the nose and a short tube connected at the front. It has three parts and weighs 45 g including headgear, according to ResMed.
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Under-nose cushion, tube at the top
The AirFit N30i is a ResMed nasal mask with a silicone cushion that sits under the nose and a tube that connects at the top of the head. The SpringFit frame comes in two sizes and the cushion in four.
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Side by side
Data published by the manufacturers. Rows that differ come first.
| Specification | AirFit N30 | AirFit N30i |
|---|---|---|
| SizesDiffers | S, SW, M | S, SW, M, W |
| Declared noiseDiffers | 18 dBA at 1 m · 25 dBA sound power | 14 dBA at 1 m · 21 dBA sound power |
| Top-of-head tubeDiffers | No | Yes |
| WeightDiffers | 45 g | Not specified |
| Launch yearDiffers | 2019 | Not specified |
| Cushion material | silicone | silicone |
| Magnets | No | No |
| Nose bridge | Free, the mask does not touch it | Free, the mask does not touch it |
| AirMini compatible | No | No |
Which one for you?
Rather the AirFit N30 if:
- Beginners looking for a simple mask
- People prone to claustrophobia
- Side sleepers
Watch out for
- The standard version is not compatible with the ResMed AirMini; a separate AirFit N30 for AirMini exists.
- Therapy pressure range 4 to 20 cm H2O.
- Nasal mask: if you breathe through your mouth, air escapes.
Rather the AirFit N30i if:
- Side or stomach sleepers
- A nasal bridge prone to marks
- Glasses wearers who read or watch TV in bed
Watch out for
- Not compatible with the ResMed AirMini.
- Nasal mask: if you breathe through your mouth, air escapes.
- Select the Pillows mask setting on ResMed devices; ResMed notes SmartStop may not work with some devices.
CPAP Ranker analysis, written from the manufacturers' documents. It is not a patient review and does not replace your equipment provider.
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CPAP Ranker is funded by VivaRespire, which sells both products compared. This partnership has no influence on the comparisons, ratings or reviews.