Limited time: $150 off selected CPAP machines

    Published 5 September 2026 · Comooz clinical team, Singapore

    Quick answer

    The ResMed P30i and N30i are both top-of-head tube CPAP masks, but the key difference is the cushion: the P30i uses nasal pillows at the nostril openings, while the N30i uses an under-the-nose cradle. In Singapore, the better choice usually depends on nostril sensitivity, seal stability, side-sleeping, mouth leak, and whether you prefer a more direct or gentler airflow feel.

    ResMed P30i vs N30i in Singapore

    Key takeaways

    • The ResMed P30i uses nasal pillows, while the ResMed N30i uses an under-the-nose cradle; that nose interface is the main difference.
    • Both masks use a top-of-head tube design, which many side sleepers prefer because it reduces front-hose pull during sleep.
    • Common obstructive sleep apnea severity thresholds use AHI 5, 15, and 30 events per hour for mild, moderate, and severe categories.
    • Comooz, a Singapore CPAP provider (UEN 201808754M), sees patients at 151 Chin Swee Rd, #02-03, Singapore 169876 by appointment only.
    • Current AutoSet bundle prices are $2,068 nett for the ResMed AirSense 11 AutoSet Bundle and $1,868 nett for the ResMed AirSense 10 AutoSet Bundle.
    • The 5-night CPAP trial is not free and involves a deposit, mask cost, and a $98 return fee.

    What is the difference between the ResMed P30i and N30i?

    The difference between the ResMed P30i and N30i is the cushion style at the nose. The P30i uses nasal pillows that sit at the nostril openings, while the N30i uses a soft cradle cushion that rests under the nostrils.

    Both are ResMed CPAP mask options designed for people using therapy for obstructive sleep apnea. Both share the same frame concept: air flows through the side arms of the mask and the tube connects at the top of the head, which can make turning in bed easier.

    The practical choice usually comes down to sensation and seal. Some people like the compact, direct seal of nasal pillows. Others prefer less contact at the nostril openings and choose a nasal cradle mask instead.

    ResMed AirFit P30i nasal pillows CPAP mask with top-of-head tube

    ResMed AirFit N30i nasal cradle CPAP mask with top-of-head tube

    If you are still at the diagnosis stage rather than the mask stage, see Comooz’s guide to a home sleep test in Singapore before choosing equipment.

    How the P30i and N30i work during CPAP therapy

    The P30i and N30i both deliver pressurised air from a CPAP machine to help keep the upper airway open during sleep. CPAP therapy works by splinting the airway open, which can reduce obstructive events that contribute to a raised AHI.

    A CPAP machine such as a ResMed AutoSet sends airflow through the tubing, into the top-of-head elbow, down the mask frame, and to the cushion at the nose. With the P30i, the air enters through nasal pillows seated at the nostrils. With the N30i, the air enters through a cradle cushion sitting just beneath the nose.

    This difference matters because airflow sensation affects comfort. Nasal pillows can feel more direct, especially if pressure rises during AutoSet therapy. A cradle cushion may feel less intrusive for some users. Humidification also matters because dryness can change how either mask feels night to night.

    How CPAP pressure splints the airway open

    If you are comparing mask styles alongside therapy devices, Comooz also explains current CPAP machine options in Singapore, including ResMed AutoSet machines with built-in humidification.

    ResMed P30i vs N30i: comparison table for fit, comfort and use

    The best way to compare resmed p30i vs n30i is by cushion feel, seal behaviour, and how you actually sleep. The table below summarises the differences most people notice first.

    FeatureResMed P30iResMed N30i
    Cushion typeNasal pillowsUnder-the-nose nasal cradle
    Contact pointAt the nostril openingsUnder the nostrils
    Feel at the noseMore direct airflow sensationLess “in-nose” feel
    Seal styleDirect seal at the nostrilsSeal depends on under-nose positioning
    Side-sleeping suitabilityStrong option because of top-of-head tubeStrong option because of top-of-head tube
    If your nostrils are sensitiveMay feel too direct for some usersOften preferred if pillows irritate the nose
    If you want minimal bulkVery compact at the noseAlso low-profile, but broader under the nose
    Mouth leakStill possible because it is a nasal-style maskStill possible because it is a nasal-style mask
    Cleaning focusPillow openings need routine cleaningCushion surface under the nose needs routine cleaning
    Who it may suitUsers who like nasal pillows and a secure nostril sealUsers who dislike pillows and want a gentler under-nose feel

    The comparison is useful, but fit still decides the outcome. A mask that looks ideal on paper can still leak if the size is wrong or the frame sits poorly on your face.

    Who may prefer the P30i

    The P30i may suit people who want a very compact nasal pillows mask with minimal bulk over the face. Many users choose it because the cushion footprint is small and the top-of-head tube leaves the front of the face relatively clear.

    You may prefer the ResMed P30i if:

    • You already know you tolerate nasal pillows well.
    • You want minimal contact around the bridge of the nose.
    • You move around in bed and like the top-of-head tube setup.
    • You want a seal that sits directly at the nostril openings.
    • You are comfortable with a more direct airflow feel.

    The P30i is not automatically better for everyone. If your nostrils are easily irritated, or if the pillow size is off, the mask may feel too direct. That is why mask fit matters as much as mask model.

    ResMed AirFit P30i nasal pillows CPAP mask with top-of-head tube, front view

    Who may prefer the N30i

    The N30i may suit people who want a top-of-head tube mask but do not like the sensation of pillows at the nostrils. Its under-the-nose cushion is often described as gentler or less invasive.

    You may prefer the ResMed N30i if:

    • Your nose feels sensitive with nasal pillows.
    • You prefer a nasal cradle mask rather than anything seated at the nostril openings.
    • You want the same overhead hose concept as the P30i with a different nose feel.
    • You are sensitive to pressure points right at the nostrils.
    • You want a nasal mask that feels less direct during airflow delivery.

    The N30i still needs a good seal to work well. If the cushion shifts or the size is not right, leaks and noise can still happen, especially when sleeping on your side.

    ResMed AirFit N30i nasal cradle CPAP mask with top-of-head tube, front view

    Comfort, seal and side-sleeping: what affects real-world performance

    Real-world performance depends less on the product name and more on fit, sleep position, pressure, and facial anatomy. A CPAP mask works best when it seals consistently without causing pressure points.

    For side sleeping, both masks have a strong advantage: the hose connection is at the top of the head, not in front of the face. That can reduce drag when you turn from side to side. But side-sleeping success still depends on how your pillow presses against the frame and cushion.

    Mask seal can also change with therapy pressure. Users on higher pressure may notice leaks more quickly if the cushion is slightly off. Auto-adjusting therapy can expose marginal fit because pressure is not fixed all night. Humidification matters too, because dryness can make the nose more reactive and increase discomfort.

    If your AHI remains elevated despite using CPAP, the mask may not be the only reason. Leak, pressure range, sleep stage, and airway behaviour all matter. Decisions about titration, EPAP targets, or pressure changes should be guided by a clinician or sleep physician rather than guessed.

    Nasal symptoms, mouth leak and when a different mask style may be needed

    Both the P30i and N30i are nasal-style masks, so neither directly solves mouth breathing. If your mouth opens during sleep, pressurised air can escape and reduce comfort or treatment effectiveness.

    Common issues include dry nose, dry mouth, sore nostrils, or a noisy mask seal. These problems may improve with better sizing, humidification, frame adjustment, or a different cushion style. If the issue is persistent mouth leak, a different mask category may be more appropriate.

    A full face mask may be considered when nasal masks keep failing because of mouth leak, nasal blockage, or poor tolerance. Examples include the ResMed AirFit F20 or AirTouch F20, which cover both nose and mouth. A clinician can help determine whether the problem is the cushion, the pressure, or the mask category itself.

    Nose versus mouth breathing during sleep

    Who this comparison is for and not for

    This resmed p30i vs n30i comparison is most useful for people who already know they need CPAP therapy or are actively being fitted for it. It is about mask selection, not diagnosis.

    This is for you if you are choosing between nasal pillows and an under-the-nose cradle, especially if you side sleep or dislike front-hose masks. This is not for you if you have not yet assessed suspected sleep apnea, if you may need a full face mask because of heavy mouth leak, or if you have a more complex case that may require polysomnography, clinician-led titration, or a sleep physician review.

    A home sleep test is a test done outside the lab to screen for sleep-disordered breathing. In Singapore, Comooz offers Type 3 home sleep tests on demand, while Type 2 studies can be arranged manually with a trained specialist.

    How to choose a CPAP mask in Singapore with less trial-and-error

    The fastest way to reduce trial-and-error is to choose a mask after proper sleep assessment and a hands-on fitting. In Singapore, that usually means confirming suspected obstructive sleep apnea first, then matching the mask to your breathing pattern, comfort needs, and therapy setup.

    AHI is the apnea-hypopnea index, which groups severity by events per hour. In general terms, AHI 5, 15, and 30 are common thresholds used when discussing mild, moderate, and severe obstructive sleep apnea. Diagnosis and treatment decisions should still be made by a doctor or sleep specialist.

    Useful ways to reduce mask trial-and-error include:

    • Confirm whether you mainly breathe through your nose or have frequent mouth leak.
    • Check whether your nose is sensitive to pillow-style cushions.
    • Consider whether you are a side sleeper and how your pillow contacts the mask.
    • Use humidification if dryness is making therapy harder.
    • Get the size checked rather than buying blind online.

    For more patient education, Comooz publishes practical sleep apnea guides in its sleep apnea learning centre.

    Comooz mask fitting and next-step support in Singapore

    Comooz, a Singapore CPAP provider (UEN 201808754M), helps patients compare masks such as the ResMed P30i and N30i with less guesswork. The goal is not to claim a universal best mask, but to find a workable fit that supports regular CPAP use.

    Support is available by appointment at 151 Chin Swee Rd, #02-03, Singapore 169876. If you also need a machine, Comooz carries the ResMed AirSense 11 AutoSet Bundle at $2,068 nett and the ResMed AirSense 10 AutoSet Bundle at $1,868 nett. Both bundles include the main unit, power supply, built-in humidification, tubing, filter, carrying case and a fitted mask.

    The AirSense 11 AutoSet includes a full-colour touchscreen, Climate Control with integrated humidifier, over-the-air updates, and Care Check-in. The AirSense 10 AutoSet uses a monochrome display with dial, an integrated HumidAir chamber, built-in cellular connectivity for the myAir app, and a proven workhorse design.

    For people not ready to purchase immediately, there is a 5-night CPAP trial, but it is not a free trial. It involves a deposit, mask cost, and a $98 return fee. Monthly CPAP rental is also available, with 3-month offset rules toward purchase.

    If you want help choosing between nasal pillows, a nasal cradle mask, or a full face option, contact Comooz through the appointment and support page.

    Frequently asked questions

    What is the main difference between the ResMed P30i and N30i?

    The main difference is the cushion style. The P30i uses nasal pillows that sit at the nostril openings, while the N30i uses a cradle cushion that rests under the nose. Both use a top-of-head tube design, but they can feel very different in comfort, seal, and airflow sensation during CPAP therapy.

    Is the P30i or N30i better for side sleepers?

    Both are commonly chosen by side sleepers because the hose connects at the top of the head, reducing front-hose drag. However, real-world comfort depends on facial structure, pillow contact, frame fit, and cushion sizing. The better mask is usually the one that keeps a stable seal without causing pressure points when you turn.

    Which mask is better if my nose feels sensitive or sore?

    Some people with sensitive nostrils prefer the N30i because it rests under the nose rather than inside it. Others tolerate the P30i very well once the pillow size is correct. If soreness, dryness, or irritation persists, review sizing, humidification, and alternative mask styles with your clinician or sleep provider.

    Can either mask help if I breathe through my mouth at night?

    Neither mask directly treats mouth breathing, because both are nasal-style masks. If significant mouth leak happens during CPAP, therapy may feel less effective or more uncomfortable. A clinician may suggest checking nasal blockage, adjusting settings, improving comfort, or considering a full face mask if nasal masks keep failing.

    Are the P30i and N30i safe to use without a sleep test?

    A CPAP mask is only one part of therapy, and choosing equipment without proper assessment can lead to poor fit or ineffective treatment. If sleep apnea is suspected, it is safer to speak with a doctor or sleep provider and consider a home sleep test, Type 2 or Type 3 study, or formal sleep evaluation first.

    How do I know which size to get?

    Sizing should follow the manufacturer’s fitting guide and ideally be checked by a trained provider. A mask that is too small or too large may leak, feel noisy, or irritate the nose. Proper fitting can improve comfort and support better CPAP adherence over time, especially when comparing similar masks like the P30i and N30i.

    WhatsApp Comooz or call +65 8892 2591 to compare the resmed p30i vs n30i in person and book a by-appointment fitting in Singapore.

    Talk to Comooz

    Comooz is a Singapore CPAP provider (UEN 201808754M). For pricing, a home sleep test or a CPAP trial, contact us at support@comooz.sg or +65 8892 2591. Showroom visits at 151 Chin Swee Rd, #02-03, Singapore 169876 are strictly by appointment.

    Frequently asked questions

    What is the main difference between the ResMed P30i and N30i?
    The main difference is the cushion style. The P30i uses nasal pillows that sit at the nostril openings, while the N30i uses a cradle cushion that rests under the nose. Both use a top-of-head tube design, but they can feel very different in comfort, seal, and airflow sensation.
    Is the P30i or N30i better for side sleepers?
    Both are commonly chosen by side sleepers because the hose connects at the top of the head, reducing front-hose drag. However, real-world comfort depends on facial structure, pillow contact, and cushion fit. A mask that seals well without pressure points is usually the better option, regardless of model.
    Which mask is better if my nose feels sensitive or sore?
    Some people with sensitive nostrils prefer the N30i because it rests under the nose rather than inside it. Others tolerate the P30i very well once the size is correct. If soreness, dryness, or irritation persists, discuss sizing, humidification, and alternative mask styles with your clinician.
    Can either mask help if I breathe through my mouth at night?
    Neither mask directly treats mouth breathing, because both are nasal-style masks. If significant mouth leak happens during CPAP, therapy may feel less effective or more uncomfortable. A clinician may suggest checking nasal blockage, adjusting settings, trying comfort accessories, or considering a full face mask if appropriate.
    Are the P30i and N30i safe to use without a sleep test?
    A CPAP mask is only one part of therapy, and choosing equipment without proper assessment can lead to poor fit or ineffective treatment. If sleep apnea is suspected, it is safer to speak with a doctor or sleep provider and consider a home sleep test or formal sleep evaluation first.
    How do I know which size to get?
    Sizing should follow the manufacturer’s fitting guide and ideally be checked by a trained provider. A mask that is too small or too large may leak, feel noisy, or irritate the nose. Proper fitting can improve comfort and support better CPAP adherence over time.

    Related guides

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