Limited time: $150 off selected CPAP machines

    Published 19 August 2026 · Comooz clinical team, Singapore

    Quick answer

    The ResMed AirFit F30i and N30i are both top-of-head CPAP masks for active sleepers, but they suit different breathing patterns. The F30i is a hybrid full face mask for mouth breathers, mixed breathers, or people with frequent nasal congestion. The N30i is a lighter nasal cradle mask for reliable nose breathers who want minimal facial contact.

    ResMed AirFit F30i vs ResMed AirFit N30i: Which Mask Is Right for You?

    Key takeaways

    • The ResMed AirFit F30i covers the mouth and under-nose area, while the ResMed AirFit N30i seals under the nose only.
    • For resmed airfit f30i vs resmed airfit n30i, the simplest rule is: choose F30i for mouth breathing and N30i for steady nasal breathing.
    • Both masks use a top-of-head tube connection, which usually helps side sleepers and toss-and-turn sleepers reduce front-hose pull.
    • If you change from N30i to F30i on a CPAP machine such as a ResMed AutoSet, update the mask type from Nasal to Full Face for better leak reporting.
    • Comooz, a Singapore CPAP provider (UEN 201808754M), offers a 5-night CPAP trial that is not free and requires a deposit, mask cost, and a $98 return fee.
    • Current bundle pricing is $2,068 nett for the ResMed AirSense 11 AutoSet Bundle and $1,868 nett for the ResMed AirSense 10 AutoSet Bundle.

    Overview of Top-of-Head CPAP Masks: Freedom for Active Sleepers

    Top-of-head CPAP masks are designed to move the hose connection away from the front of the face. A top-mounted swivel keeps tubing above the head, which can make turning in bed feel easier and reduce cushion tug.

    For many people with obstructive sleep apnea, mask comfort determines whether therapy is used consistently. The ResMed AirFit F30i and ResMed AirFit N30i are popular because both use an under-nose layout with air routed through the side frame, giving a more open feel than many traditional masks.

    A CPAP mask does not diagnose or manage sleep apnea. The mask delivers pressure from the machine, while the machine provides the therapy. If you are still being assessed, a sleep physician may recommend polysomnography or a home sleep test in Singapore, depending on your symptoms and clinical history.

    People who often like top-of-head designs include:

    • Side sleepers
    • Restless sleepers
    • People who read or watch TV before bed
    • Users who dislike front-hanging tubing
    • People who feel claustrophobic in bulkier masks

    If you are comparing masks as part of a bigger setup, see Comooz’s guide to CPAP machines in Singapore and broader sleep apnea education resources.

    ResMed AirFit F30i: Features, Benefits, and Ideal Candidate

    The ResMed AirFit F30i is a hybrid full face mask. It seals under the nose and around the mouth, so it is made for users who need mouth coverage during sleep.

    ResMed AirFit F30i full face CPAP mask with top-of-head tube, front view

    The F30i does not sit on the nasal bridge like a traditional full face mask. That design reduces direct bridge contact and can appeal to users who want full-face coverage without forehead support or a high-profile cushion across the nose.

    Its main advantage is mouth leak control. If therapy air escapes through the lips, the F30i can preserve the seal better than a nasal mask because the mouth is enclosed within the mask.

    Key F30i strengths include:

    • Better control of mouth leak
    • More suitable for mixed nose-and-mouth breathers
    • Helpful when nasal congestion makes nasal-only therapy harder
    • Top-of-head hose routing for movement in bed
    • Lower bridge contact than classic full-face designs

    The F30i is often a practical choice for people using AutoSet therapy who want more security on nights when congestion flares. The machine may adjust pressure automatically, but a stable full-face seal still matters for comfort and leak performance.

    Who the F30i is best for

    The ResMed AirFit F30i is usually the better fit if you:

    • Wake with a dry mouth
    • Often breathe through your mouth
    • Have allergy-related or air-con-related nasal blockage
    • Lose therapy air through parted lips
    • Want full-face coverage without a nasal bridge cushion

    Who the F30i is not ideal for

    It may be less suitable if you:

    • Are a consistent nose breather
    • Want the lightest possible mask
    • Prefer the smallest facial footprint
    • Feel warmer in fuller masks

    ResMed AirFit N30i: Features, Benefits, and Ideal Candidate

    The ResMed AirFit N30i is a nasal cradle mask. It seals only under the nostrils and leaves the mouth uncovered, so it is intended for users who can maintain nasal breathing during sleep.

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

    The N30i is popular because it feels minimal. The cushion sits beneath the nose rather than inside the nostrils, and the open field of vision can feel less claustrophobic than a fuller mask.

    For many committed nose breathers, the N30i is the more comfortable everyday option. It usually has less contact on the cheeks and lower face, which some users prefer in Singapore’s warm, humid environment.

    Who the N30i is best for

    The ResMed AirFit N30i is usually the better fit if you:

    • Breathe reliably through your nose
    • Want a lighter, less obtrusive mask
    • Sleep on your side and move frequently
    • Prefer a low-contact mask with an open field of vision
    • Dislike having the mouth covered

    Who the N30i is not ideal for

    It may be less suitable if you:

    • Regularly mouth breathe
    • Have chronic nasal obstruction
    • Wake with dry mouth from leak
    • Need a mask that remains effective during congestion

    Person sleeping while wearing the ResMed AirFit N30i nasal cradle mask

    Head-to-Head Comparison: ResMed AirFit F30i vs ResMed AirFit N30i

    For resmed airfit f30i vs resmed airfit n30i, the deciding factors are mouth coverage, leak control, and how much mask you want on your face. The F30i gives more sealing security; the N30i gives more minimalism.

    Nose versus mouth breathing during sleep

    FeatureResMed AirFit F30iResMed AirFit N30i
    Mask typeHybrid full face maskNasal cradle mask
    Cushion coverageUnder nose plus mouth enclosureUnder-nose cradle only
    Best for breathing patternMouth breathers or mixed breathersReliable nose breathers
    Mouth leak controlStronger, because the mouth is sealedLimited, because the mouth is uncovered
    Facial footprintMore coverageLess coverage
    Claustrophobia factorLower than many traditional full-face masks, but still fuller than N30iUsually feels more open
    Side-sleeper friendlinessGoodGood
    Top-of-head tubeYesYes
    Machine mask settingFull FaceNasal
    Typical “why people choose it”Security during congestion or lip leakLight feel and low facial contact

    What this means in real use

    If your biggest problem is air escaping through the mouth, the F30i usually wins. If your biggest problem is feeling crowded by the mask, the N30i usually wins.

    If you use a machine such as the ResMed AirSense 11 AutoSet or AirSense 10 AutoSet, the therapy algorithm can respond to events through the night, but the mask still affects leak stability and comfort. Good mask selection supports better titration outcomes and more reliable nightly use.

    How Mask Choice Affects Leak, Comfort, and Therapy Data

    Mask choice affects more than comfort. It also affects leak behaviour, dryness, and how easy it is to stay on therapy all night.

    A nasal cradle mask like the N30i can work very well when the nose stays open and the mouth remains closed. But if the jaw drops open, pressure can escape through the lips. That can increase dryness and make therapy feel less effective, even when the machine is set correctly.

    A full face mask like the F30i can reduce that specific problem because it contains both airflow routes. This does not mean full face is always better; it means the F30i is often more forgiving for mouth breathing.

    If a clinician is reviewing CPAP data, they may look at residual AHI, leak patterns, pressure needs, and comfort. AHI thresholds are commonly grouped as 5-14.9 mild, 15-29.9 moderate, and 30 or more severe, but diagnosis and treatment decisions should be made by a doctor or sleep specialist.

    Apnea-hypopnea index severity scale

    A quick note on machine settings

    If you switch between masks, update your machine’s mask type. On many ResMed devices, N30i = Nasal and F30i = Full Face. This helps the device match expected vent characteristics and report leak more accurately.

    Choosing the Right Mask for Singapore’s Climate and Sleeping Habits

    Singapore’s sleeping environment can change mask performance. Air-conditioning, bedroom dryness, allergies, and nasal congestion often determine whether a nasal mask remains comfortable overnight.

    If your nose dries out or blocks easily in air-conditioned rooms, the N30i may become harder to tolerate on bad nights. The F30i can be more forgiving because mouth breathing does not automatically break the treatment seal.

    Humidification matters here. ResMed AutoSet machines with built-in humidification can improve comfort for users dealing with dryness from air-conditioning.

    ResMed AirSense 11 humidifier chamber being filled with distilled water

    F30i may suit you better if

    • You sleep in strong air-conditioning
    • You get blocked noses at night
    • You alternate between nose and mouth breathing
    • You want a more forgiving seal during allergy or flu periods

    N30i may suit you better if

    • Your nose stays open most nights
    • You feel warm in larger masks
    • You want the least facial coverage possible
    • You prioritise openness over mouth leak protection

    If you still need diagnosis rather than mask selection, a sleep physician may recommend polysomnography, Type 2 home testing, or Type 3 home sleep testing depending on clinical needs. Comooz can arrange Type 3 home sleep tests on demand, with Type 2 arranged manually with a trained specialist.

    Testing Mask Fit with Comooz CPAP Trials

    A mask decision should be tested during real sleep. The right mask is the one that controls leaks, feels tolerable for a full night, and matches your actual breathing pattern.

    Comooz, a Singapore CPAP provider (UEN 201808754M), supports people comparing mask and machine options. The showroom is at 151 Chin Swee Rd, #02-03, Singapore 169876, strictly by appointment.

    Here are the current practical options.

    OptionWhat it includesPrice / terms
    ResMed AirSense 11 AutoSet BundleMain unit, power supply, built-in humidification, tubing, filter, carrying case and a fitted mask$2,068 nett
    ResMed AirSense 10 AutoSet BundleMain unit, power supply, built-in humidification, tubing, filter, carrying case and a fitted mask$1,868 nett
    5-night CPAP trialTrial to assess comfort, fit and leakRefundable deposit + mask cost + $98 return fee
    CPAP rentalMonthly rental arrangementMonthly, with 3-month offset rules toward purchase

    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, integrated HumidAir chamber, built-in cellular connectivity for myAir, and a proven workhorse design.

    If you are being assessed for bilevel rather than standard CPAP, terms like EPAP and pressure support become more relevant. Those decisions depend on clinical review, titration, and physician guidance rather than mask preference alone.

    For fittings or troubleshooting, use the Comooz contact page, email support@comooz.sg, or call +65 8892 2591.

    Frequently asked questions

    Can I switch from the AirFit N30i to the F30i using the same CPAP machine?

    Yes. Both masks connect to standard CPAP tubing and are commonly used with machines such as the ResMed AirSense 10 AutoSet and AirSense 11 AutoSet. You should still change the machine mask setting from Nasal to Full Face or vice versa so the device can track leak more appropriately.

    Which mask is better if I breathe through my mouth in air-conditioned rooms?

    The ResMed AirFit F30i is usually the better choice. Air-conditioned bedrooms can worsen nasal dryness or congestion, and that often makes a nasal-only mask harder to use. Because the F30i covers the mouth as well as the under-nose area, it better maintains the seal when mouth breathing happens.

    Does the ResMed AirFit F30i leave red marks on the bridge of the nose?

    The F30i is designed to avoid direct contact on the bridge of the nose. Unlike many traditional full-face masks, it uses an under-the-nose cushion plus mouth coverage. That means it may reduce bridge soreness for some users, although fit, strap tension, and face shape still affect whether marks occur.

    Are the headgear straps and frames interchangeable between the F30i and N30i?

    No. The systems are not fully interchangeable. Both use a top-of-head tube concept, but the F30i is built around a hybrid full-face cushion and lower attachments to support mouth coverage, while the N30i is built around a smaller nasal cradle setup with different fit requirements.

    How can I try the ResMed AirFit F30i or N30i before buying in Singapore?

    You can assess fit through a structured Comooz CPAP trial. The 5-night trial is not free and involves a refundable deposit, mask cost, and a $98 return fee. That lets you evaluate comfort, leak control, and whether the mask works with your actual sleep position and breathing pattern.

    Conclusion: Which Should You Choose?

    For most people comparing resmed airfit f30i vs resmed airfit n30i, the choice is straightforward: pick the F30i if you need mouth coverage or often get congested, and pick the N30i if you are a dependable nose breather who wants the lightest, most open top-of-head mask. If you are unsure, a proper fitting and clinician-guided treatment plan are safer than guessing, especially if diagnosis, pressure titration, residual AHI, or polysomnography findings are still under review.

    WhatsApp Comooz or call +65 8892 2591 to compare the ResMed AirFit F30i vs ResMed AirFit N30i and book a by-appointment fitting in Singapore.

    Frequently asked questions

    Can I switch from the AirFit N30i to the F30i using the same CPAP machine?
    Yes, both masks connect to standard 22mm CPAP tubing and are compatible with machines like the ResMed AirSense 10 and AirSense 11. However, you must update your machine's mask setting from 'Nasal' to 'Full Face' to ensure accurate pressure delivery and leak monitoring.
    Which mask is better if I breathe through my mouth in air-conditioned rooms?
    The ResMed AirFit F30i is the superior choice for mouth breathers. Because air conditioning in Singapore bedrooms can cause nasal congestion, mouth breathing often leads to pressure loss with the N30i unless a chin strap is worn. The F30i seals around both nose and mouth to prevent pressure leaks.
    Does the ResMed AirFit F30i leave red marks on the bridge of the nose?
    No. Unlike traditional full-face masks that rest on the sensitive bridge of the nose, the F30i features an under-the-nose cushion design. It delivers air through the nostrils while covering the mouth, eliminating nasal bridge pressure, sores, and eye irritation.
    Are the headgear straps and frames interchangeable between the F30i and N30i?
    No, the frame and headgear are not fully interchangeable. While both use hollow spring-fit silicone frames with top-of-head elbows, the F30i frame includes lower magnetic clip attachments to support the full-face cushion, whereas the N30i frame attaches directly to a smaller nasal cradle.
    How can I try the ResMed AirFit F30i or N30i before buying in Singapore?
    You can evaluate CPAP masks through a structured clinic trial at Comooz. We offer a 5-night CPAP trial (involving a refundable deposit, mask purchase fee, and a $98 return fee) so a sleep specialist can ensure correct sizing, leak reduction, and comfort before commitment.

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