If your sleep physician mentioned a BiPAP machine after a titration study, you’ve probably typed “ResMed BiPAP machine” into Google trying to make sense of the model names. ResMed’s bilevel lineup isn’t just one machine — it’s three, each built for a different job. This guide walks through the Lumis 100 VPAP ST, the Lumis 150 VPAP ST, and the AirCurve 10 VAuto so you know what separates them, which therapy modes they support, and how to pick a compatible mask before committing to one.
Table of Contents
- What Is a BiPAP Machine, and Why Would a Doctor Prescribe One?
- ResMed’s BiPAP Lineup: Lumis 100, Lumis 150 and AirCurve 10 VAuto
- ResMed Lumis 100 VPAP ST
- ResMed Lumis 150 VPAP ST
- ResMed AirCurve 10 VAuto
- Lumis 100 vs Lumis 150 vs AirCurve 10 VAuto: Spec Comparison
- Therapy Modes Explained: S, ST, iVAPS and Auto-Adjusting Bilevel
- Choosing a BiPAP Mask: Nasal vs Full Face
- Other BiPAP Options If ResMed Isn’t the Right Fit
- Buying vs Renting a ResMed BiPAP Machine in Delhi NCR
- Frequently Asked Questions
What Is a BiPAP Machine, and Why Would a Doctor Prescribe One?
A BiPAP (bilevel positive airway pressure) machine, sometimes called a VPAP depending on the brand, delivers two pressures instead of one constant pressure — higher on inhale (IPAP), lower on exhale (EPAP), which makes breathing out noticeably easier. We’ve covered the full CPAP-versus-BiPAP comparison elsewhere, so briefly: a doctor moves a patient to a bipap machine when a fixed pressure isn’t enough — higher pressure needs than CPAP delivers comfortably, COPD or conditions affecting exhale, central or complex sleep apnea, or CPAP intolerance. Our BiPAP machines category page has more background, and our STOP-BANG screening questionnaire is a useful first step if undiagnosed. From here, we’re focusing on ResMed’s bilevel range, where the real decisions happen once a prescription is in hand.
ResMed’s BiPAP Lineup: Lumis 100, Lumis 150 and AirCurve 10 VAuto
ResMed sells its bilevel devices under two family names — Lumis and AirCurve. Both share ResMed’s HumidAir integrated humidifier and Easy-Breathe pressure delivery, but they’re positioned for different clinical situations. The Lumis devices (Lumis 100 VPAP ST and Lumis 150 VPAP ST) are non-invasive ventilators cleared for both OSA and respiratory insufficiency — COPD, neuromuscular conditions, obesity hypoventilation syndrome — where the lungs need help maintaining ventilation, not just an open airway. The AirCurve 10 VAuto, by contrast, is indicated specifically for OSA — ResMed’s auto-adjusting bilevel option for patients needing more support than CPAP, without a respiratory insufficiency diagnosis. Here’s a closer look at each before lining them up side by side.
ResMed Lumis 100 VPAP ST
The Lumis 100 VPAP ST is ResMed’s entry point into fixed-pressure bilevel ventilation, offering CPAP, S (Spontaneous), T (Timed), and PAC (Pressure Assist-Control) modes, with an operating pressure range of roughly 2-25 cm H2O in S/T/PAC and 4-20 cm H2O in CPAP mode, plus supplemental oxygen support up to 15 L/min. What it lacks is iVAPS, ResMed’s volume-assured mode — the main line separating it from its sibling. In practice, it suits a straightforward ST-mode prescription: a set IPAP, a set EPAP, and a backup rate if breaths need triggering. It’s a capable, no-frills non-invasive ventilator for anyone above 13 kg who needs dependable, doctor-titrated bilevel pressure without the Lumis 150’s extra automation. Full specs are on the Lumis 100 VPAP ST product page.
ResMed Lumis 150 VPAP ST
The Lumis 150 VPAP ST is the more advanced non-invasive ventilator in ResMed’s range — the one pulmonologists reach for when a patient needs more than fixed-pressure support. It includes every Lumis 100 mode, plus ST with optional intelligent Backup Rate (iBR) and iVAPS (intelligent Volume-Assured Pressure Support) with optional AutoEPAP. iVAPS is the standout: instead of a fixed pressure support level, it continuously adjusts pressure to maintain target ventilation, useful for patients whose breathing needs vary overnight — neuromuscular disease, obesity hypoventilation syndrome. AutoEPAP auto-adjusts expiratory pressure against airway obstructions, so the machine reacts to the patient instead of locking into a static setting, and the intelligent Backup Rate mimics the patient’s own breathing rate during sustained apnoea. iVAPS is indicated for patients above 30 kg; other modes cover patients above 13 kg. If your prescription calls out iVAPS, volume assurance, or auto-titrating EPAP, this is the model — see its Lumis 150 VPAP ST product page.
ResMed AirCurve 10 VAuto
The AirCurve 10 VAuto sits in a different clinical lane. It’s indicated for obstructive sleep apnea in patients above 30 kg, not respiratory insufficiency, and its defining feature is auto-adjusting on both sides of the breath — ResMed’s AutoSet algorithm continuously finds the lowest effective pressure to keep the airway open, combined with the Easy-Breathe waveform for smoother inhale-exhale transitions. Its operating pressure range is roughly 2-25 cm H2O, with supplemental oxygen support up to 15 L/min in S/CPAP modes, or up to 4 L/min in VAuto mode. Unlike the Lumis models, it skips iVAPS entirely — simpler by design, solving a narrower problem: patients prescribed CPAP who can’t tolerate a fixed pressure, or whose OSA responds better to pressure that auto-adjusts within a bilevel structure. It’s a common step-up once CPAP pressure gets high enough that exhaling against it becomes uncomfortable. See the full spec sheet on the AirCurve 10 VAuto product page.
Lumis 100 vs Lumis 150 vs AirCurve 10 VAuto: Spec Comparison
Here’s how the three devices stack up on the specifications that actually affect day-to-day therapy and prescription decisions.
| Feature | Lumis 100 VPAP ST | Lumis 150 VPAP ST | AirCurve 10 VAuto |
|---|---|---|---|
| Primary clinical use | Respiratory insufficiency and OSA (fixed bilevel) | Respiratory insufficiency and OSA (advanced bilevel with volume assurance) | Obstructive sleep apnea only (auto-adjusting bilevel) |
| Therapy modes | CPAP, S, T, PAC | CPAP, S, T, ST with optional iBR, PAC, iVAPS with optional AutoEPAP | CPAP, S, VAuto (auto-adjusting bilevel) |
| Volume-assured ventilation (iVAPS) | Not available | Available | Not available |
| Auto-adjusting pressure | No — fixed pressures set by clinician | AutoEPAP available within iVAPS mode | Yes — AutoSet algorithm auto-adjusts pressure continuously |
| Operating pressure range | ~2-25 cm H2O (S/T/PAC); 4-20 cm H2O (CPAP) | ~2-25 cm H2O (S/T/PAC); 4-20 cm H2O (CPAP) | ~2-25 cm H2O |
| Minimum patient weight | Above 13 kg | Above 13 kg (iVAPS mode: above 30 kg) | Above 30 kg |
| Supplemental oxygen support | Up to 15 L/min | Up to 15 L/min | Up to 15 L/min (S/CPAP); up to 4 L/min in VAuto mode |
| Integrated humidifier | HumidAir heated humidifier | HumidAir heated humidifier | HumidAir heated humidifier |
| Leak management | Easy-Breathe waveform | Vsync, Easy-Breathe waveform | Vsync, Easy-Breathe waveform |
| Intelligent backup rate | Not available | Available (iBR — mimics patient’s own breath rate) | Not applicable (OSA-focused device) |
| Best suited for | Straightforward, clinician-set fixed bilevel pressure | Variable ventilation needs — neuromuscular disease, OHS, complex titrations | OSA needing exhale pressure relief, with pressure that self-adjusts nightly |
Quick way to remember it: “iVAPS” or “volume-assured” on the prescription means the Lumis 150; plain “ST” or “fixed bilevel” usually means the Lumis 100; an OSA diagnosis needing auto-adjusting bilevel means the AirCurve 10 VAuto.
Therapy Modes Explained: S, ST, iVAPS and Auto-Adjusting Bilevel
The mode names on a bipap machine prescription can be intimidating, so here’s what each means in plain terms:
S (Spontaneous) delivers IPAP when the machine detects you inhaling and switches to EPAP on exhale, following your own breathing rhythm without forcing a rate.
T (Timed) delivers breaths at a fixed, clinician-set rate regardless of effort; used less alone, more often blended into ST mode.
ST (Spontaneous-Timed) is the most commonly prescribed bilevel mode — it follows your natural breathing like S mode, but steps in with a backup breath if you don’t initiate one in time. The Lumis 150 adds an “intelligent” backup rate (iBR) that adapts to your own pattern instead of a rigid fallback.
PAC (Pressure Assist-Control) is used mainly in clinical settings, where every breath — spontaneous or not — is supported at the set pressure.
iVAPS, exclusive to the Lumis 150 here, skips a fixed pressure support level — it recalculates the pressure needed to hit a target ventilation goal as your breathing changes overnight.
VAuto, exclusive to the AirCurve 10 VAuto, is ResMed’s auto-adjusting bilevel mode for OSA — IPAP and EPAP both move within a clinician-set range, tracking your airway breath by breath instead of one fixed number.
Your sleep physician sets the mode and pressures from your titration study — these aren’t choices you make yourself. What matters is understanding why your model was chosen, and it usually comes down to this list.
Choosing a BiPAP Mask: Nasal vs Full Face
Picking the right bipap mask matters as much as picking the machine, and it’s a step people underestimate. Bilevel therapy — especially at higher IPAP settings — pushes more air than standard CPAP, so mask seal and mouth-leak control matter more, not less.
| Consideration | Nasal Mask | Full Face Mask |
|---|---|---|
| Coverage | Nose only | Nose and mouth |
| Best for | Nose breathers, side sleepers, moderate pressures | Mouth breathers, higher IPAP settings, patients whose mouth falls open overnight |
| Performance at high pressure | Delivers high pressure well but needs a near-perfect seal as IPAP rises | Distributes airflow over a larger surface area, generally more forgiving at higher IPAP |
| Common use with bilevel therapy | Used when the patient reliably breathes through the nose and prefers a lighter mask | Very common with BiPAP — the default answer to mouth leak, which worsens as pressure rises |
| Claustrophobia factor | Lower — less material on the face | Higher — more coverage can feel confining at first |
| Typical fitting concern | Seal around the nose bridge without pinching | Seal along the jaw and cheeks without excessive strap tension |
As a general rule, full face masks are the more common BiPAP choice because higher pressures make mouth leak a bigger issue than on CPAP — even patients who did fine with a nasal mask on CPAP sometimes find their mouth falls open under higher IPAP. Nasal masks still work well for many, particularly if a chin strap resolves leak tendency and they prefer the lighter feel. A good starting point is the BMC Full Face Mask F6, and our full BiPAP mask category has both styles to compare. If you’re unsure what suits your face shape, our mask fitting guide covers sizing and seal troubleshooting — an ill-fitting mask is the most common reason people give up on bilevel therapy early on.
Other BiPAP Options If ResMed Isn’t the Right Fit
ResMed isn’t the only name worth knowing. Philips makes well-regarded bilevel devices too — the DreamStation Auto BiPAP and DreamStation BiPAP AVAPS — and OxyMed’s AirSmart BPAP 30 ST and AirSmart BPAP 25 ST are budget-conscious alternatives covering core ST-mode therapy. This isn’t meant to talk you out of ResMed — the Lumis and AirCurve ranges remain among the most trusted bilevel devices in India — but if your prescription is flexible on brand, it’s worth comparing features against your needs.
Buying vs Renting a ResMed BiPAP Machine in Delhi NCR
Before comparing ResMed bipap machine price across models, decide whether buying or renting suits your situation better. A bipap machine price isn’t the only cost to weigh — consumables like mask cushions, filters, and tubing add up regardless of model. If your prescription is for a defined recovery period or you’re still confirming long-term tolerance for bilevel therapy, renting is often the sensible start — our BiPAP machine rental page covers what’s included in Delhi NCR. If you’ll need therapy long term, our certified pre-owned BiPAP program is worth considering too — every unit is tested and serviced before it goes out. Either way, confirm with your doctor which model and mode your titration study calls for before committing, since switching later usually means readjusting to a new interface and, sometimes, a new mask.
Frequently Asked Questions
What’s the difference between the ResMed Lumis 100 and Lumis 150?
The main difference is iVAPS. The Lumis 150 VPAP ST includes iVAPS with optional AutoEPAP and an intelligent Backup Rate; the Lumis 100 VPAP ST offers CPAP, S, T, and PAC modes without volume-assured ventilation. Both share the same HumidAir humidifier and similar pressure range, but the Lumis 150 suits patients whose ventilation needs vary overnight.
Is the AirCurve 10 VAuto the same as a Lumis BiPAP machine?
No. The AirCurve 10 VAuto is indicated specifically for obstructive sleep apnea and uses an auto-adjusting bilevel algorithm (VAuto with AutoSet), while the Lumis 100 and Lumis 150 VPAP ST are non-invasive ventilators indicated for both OSA and respiratory insufficiency, such as COPD or neuromuscular conditions. If your diagnosis goes beyond OSA, expect a Lumis device instead.
Do I need a prescription to buy a ResMed BiPAP machine in India?
Yes. BiPAP machines are prescription medical devices, and the model, pressure settings, and therapy mode should come from a sleep physician’s titration study. Buying without one risks pressure settings that don’t match your therapy needs.
Can I use a nasal mask with a BiPAP machine, or do I need a full face mask?
Both are used with BiPAP therapy. Nasal masks suit nose breathers who prefer a lighter mask, but full face masks are more common with BiPAP because higher IPAP pressures make mouth leak more likely, and they distribute pressure more comfortably across the face.
Which ResMed BiPAP machine is best for COPD?
Both the Lumis 100 and Lumis 150 VPAP ST are indicated for respiratory insufficiency, which includes COPD. The Lumis 150 suits complex cases where needs fluctuate, thanks to iVAPS and AutoEPAP; the Lumis 100 suits a fixed ST-mode prescription. The AirCurve 10 VAuto isn’t typically used for COPD — it’s built for OSA, not respiratory insufficiency.
How is BiPAP different from CPAP?
CPAP delivers one constant pressure throughout the breathing cycle; a BiPAP (bilevel) machine delivers a higher pressure on inhale and a lower one on exhale, making it easier to breathe out. Doctors prescribe BiPAP when CPAP pressure needs to be very high, when exhaling against fixed pressure is hard to tolerate, or when COPD affects normal breathing.
Can a ResMed BiPAP machine be rented instead of purchased?
Yes. ResMed BiPAP machines, including the Lumis 100, Lumis 150, and AirCurve 10 VAuto, are available on rental in Delhi NCR — a common choice for patients starting therapy, recovering post-surgery, or trialing a model before buying.
What’s included with a ResMed Lumis or AirCurve BiPAP machine purchase?
A standard package typically includes the device, the integrated HumidAir heated humidifier, a power supply, air tubing, and a carrying case. Masks are sold separately since fit and breathing pattern vary by patient, so most people pick a nasal or full face mask based on prescription and comfort.
Choosing between the Lumis 100, Lumis 150, and AirCurve 10 VAuto comes down to what your titration study calls for, not preference alone — and getting the mask right matters just as much. If you’d like help matching your prescription to the right model, get in touch with our team for expert advice and we’ll walk you through it.