Choosing between a ResMed CPAP machine and a BiPAP machine, or trying to work out whether the AirSense 10 or AirSense 11 is the right fit, can feel like a lot to sort through when you’ve just been handed a sleep study report. This guide walks through how these machines work, what actually separates ResMed’s most popular models, and how to pick a mask that won’t end up back in its box after a week. No price tags here — just what each machine and mask actually does, so you can compare ResMed CPAP machine price and features later with a clear head.
Table of Contents
- What Is Sleep Apnea, and How Does a CPAP Machine Treat It?
- Why ResMed CPAP Machines Are the Most Prescribed Choice
- ResMed AirSense 10 AutoSet: Features and Specifications
- ResMed AirSense 11 AutoSet: Features and Specifications
- AirSense 10 vs AirSense 11: Side-by-Side Comparison
- CPAP vs BiPAP: When a Sleep Apnea Machine Needs to Do More
- ResMed BiPAP Machines: Lumis 100 vs Lumis 150
- Choosing the Right CPAP Mask (and BiPAP Mask)
- Buying vs Renting a CPAP or BiPAP Machine
- Keeping Your CPAP Machine Working the Way It Should
- Frequently Asked Questions
What Is Sleep Apnea, and How Does a CPAP Machine Treat It?
Obstructive sleep apnea (OSA) happens when the muscles at the back of the throat relax too much during sleep, narrowing or fully blocking the airway. Breathing stops for ten seconds or longer, oxygen levels dip, and the brain briefly wakes the body up to reopen the airway — sometimes hundreds of times a night without the person ever fully realizing it. A CPAP machine, short for Continuous Positive Airway Pressure, fixes this mechanically: it delivers a steady stream of pressurized air through a mask, which acts like a splint to keep the airway open all night.
Doctors classify how severe the condition is using the Apnea-Hypopnea Index (AHI) — the number of breathing interruptions per hour of sleep, measured during a sleep study.
| AHI Score | Severity | What It Typically Looks Like |
|---|---|---|
| Below 5 events/hour | Normal | No significant sleep apnea |
| 5–14 events/hour | Mild | Occasional snoring, some daytime fatigue |
| 15–29 events/hour | Moderate | Frequent snoring, noticeable daytime sleepiness, morning headaches |
| 30+ events/hour | Severe | Loud, frequent snoring, witnessed pauses in breathing, high risk of long-term complications |
Common symptoms include loud snoring, gasping or choking during sleep, morning headaches, daytime sleepiness, irritability, and trouble concentrating. If any of this sounds familiar, a good first step is a quick self-assessment using our STOP-BANG sleep apnea screening questionnaire, followed by a proper sleep study through your doctor. You can also read more on our sleep apnea basics page.
Why ResMed CPAP Machines Are the Most Prescribed Choice
ResMed is one of the two dominant global brands in sleep apnea therapy (alongside Philips), and its AirSense and Lumis ranges are among the most widely prescribed CPAP and BiPAP machines in India. A few reasons ResMed CPAP machines tend to come up first in a doctor’s or sleep clinic’s recommendation:
- AutoSet algorithm — the machine continuously reads breathing patterns and adjusts pressure in real time, instead of holding one fixed pressure all night.
- Integrated humidification — built-in heated humidifiers reduce the dry mouth and nasal irritation that cause many people to give up on therapy in the first few weeks.
- Advanced event detection — newer ResMed machines can distinguish obstructive events from central sleep apnea and Cheyne-Stokes breathing, giving your doctor better data to fine-tune treatment.
- Data connectivity — built-in wireless connectivity means your treating physician can review compliance and therapy data remotely, without you needing to bring the machine in.
- Track record — decades of clinical use and a broad accessory ecosystem (masks, tubing, filters) that’s easy to source and replace.
You can browse the full range on our CPAP machine category page, which also covers Philips and Oxymed alternatives if you’re comparing brands.
ResMed AirSense 10 AutoSet: Features and Specifications
The ResMed AirSense 10 AutoSet has been the workhorse of ResMed’s CPAP lineup for years, and it’s still one of the most commonly prescribed auto-adjusting CPAP machines. It pairs the AutoSet pressure algorithm with a built-in HumidAir humidifier and a color LCD display, and it’s operated with a simple turn-and-press dial.
| Feature | Specification |
|---|---|
| Machine type | Auto-adjusting CPAP (APAP) with AutoSet algorithm |
| Pressure range | 4–20 cm H₂O |
| Humidifier | Integrated HumidAir heated humidifier with detachable water chamber |
| Display | Color LCD screen with dial control |
| Weight | Approx. 1.2 kg (device only) |
| Noise level | Around 26 dBA at maximum pressure — very quiet in a shared bedroom |
| Comfort features | Ramp with auto-detect sleep onset, Expiratory Pressure Relief (EPR) |
| Event detection | Identifies obstructive apnea, central apnea, RERA, and Cheyne-Stokes respiration |
| Connectivity | Built-in cellular connectivity for remote monitoring by your care provider |
It also ships with ClimateLineAir heated tubing options and is compatible with virtually every ResMed mask in the AirFit range — see the CPAP mask category for compatible options.
ResMed AirSense 11 AutoSet: Features and Specifications
The ResMed AirSense 11 AutoSet is the newer generation, rebuilt around a touchscreen interface and a more compact, lighter housing. The underlying AutoSet therapy is refined further, and a few features that were previously add-ons or accessories on the AirSense 10 are now built in.
| Feature | Specification |
|---|---|
| Machine type | Auto-adjusting CPAP (APAP) with next-generation AutoSet algorithm |
| Pressure range | 4–20 cm H₂O |
| Humidifier | Integrated heated humidifier, built into the smaller housing |
| Display | Full touchscreen interface (no manual dial) |
| Weight | Approx. 1.1 kg (device only) — lighter and more compact than the AirSense 10 |
| Noise level | Around 27 dBA at maximum pressure |
| AutoSet for Her | Built into the standard AutoSet mode (a separate model on the AirSense 10) |
| Comfort features | Ramp, Expiratory Pressure Relief (EPR), smoother pressure transitions |
| Connectivity | Built-in wireless connectivity, ResMed mobile app support, remote software updates, and Care Check-In coaching |
If you’re deciding between the two, the next section lays the differences out directly.
AirSense 10 vs AirSense 11: Side-by-Side Comparison
Both machines deliver the same core AutoSet therapy across the same 4–20 cm H₂O pressure range, so the choice usually comes down to interface, size, and how much you care about app-based tracking.
| Aspect | ResMed AirSense 10 AutoSet | ResMed AirSense 11 AutoSet |
|---|---|---|
| Control interface | Physical dial | Touchscreen |
| Size and weight | Larger, heavier | More compact, lighter |
| AutoSet for Her | Separate model variant | Built into the standard device |
| Pressure algorithm | AutoSet | Refined AutoSet with smoother transitions |
| App connectivity | Basic remote monitoring | Full ResMed app integration with Care Check-In coaching |
| Best suited for | Users who prefer straightforward manual controls | Users who want a compact device with app-based tracking and coaching |
Both are excellent, clinically proven devices — the AirSense 11 isn’t a strict upgrade so much as a different way of interacting with essentially the same therapy. You can view full details and what’s included with each on the AirSense 10 product page and the AirSense 11 product page.
CPAP vs BiPAP: When a Sleep Apnea Machine Needs to Do More
A CPAP machine delivers one continuous pressure throughout the breathing cycle. A BiPAP (Bilevel Positive Airway Pressure) machine delivers two alternating pressures — a higher one (IPAP) when you breathe in, and a lower one (EPAP) when you breathe out — which can make exhaling against the airflow noticeably easier.
| CPAP Machine | BiPAP Machine | |
|---|---|---|
| Pressure delivery | Single, continuous pressure | Two alternating pressures (inhale/exhale) |
| Typically prescribed for | Standard obstructive sleep apnea | Complex sleep apnea, COPD overlap, patients who struggle to exhale against CPAP pressure, or those needing higher pressure support |
| Ease of use | Simpler, fewer settings | More adjustable, slightly more complex setup |
| Typical patient profile | Newly diagnosed OSA, first-line therapy | Patients who’ve tried CPAP and found it uncomfortable, or with more complex respiratory needs |
Clinical research shows similar effectiveness between the two for straightforward OSA — the decision is usually made by a sleep physician based on your sleep study results and how you respond to initial CPAP therapy, not by preference alone. If your doctor has recommended a BiPAP machine, our ResMed BiPAP machine category covers the Lumis range in full, with Philips and Oxymed BiPAP alternatives alongside it.
ResMed BiPAP Machines: Lumis 100 vs Lumis 150
ResMed’s BiPAP range is built around the Lumis series. Both the Lumis 100 VPAP ST and the Lumis 150 VPAP ST use ResMed’s IntelligentAir platform, with Climate Control humidification, TiControl trigger customization, and Easy-Breathe technology for quieter operation — but they’re aimed at different levels of clinical need.
| Feature | ResMed Lumis 100 VPAP ST | ResMed Lumis 150 VPAP ST |
|---|---|---|
| Therapy modes | CPAP, S, T, ST (with optional iBR and PAC) | CPAP, S, T, ST, PAC, plus iVAPS with AutoEPAP |
| iVAPS (volume-assured pressure support) | Not available | Included |
| Pressure range | 4–20 cm H₂O (CPAP mode) | 2–25 cm H₂O (S/T/ST/PAC/iVAPS modes), 4–20 cm H₂O (CPAP mode) |
| Humidification | HumidAir with ClimateLineAir | HumidAir with ClimateLineAir |
| Best suited for | Home users needing a reliable, quiet BiPAP without advanced monitoring | Patients needing more sophisticated ventilation support and closer clinical monitoring |
Your sleep physician’s prescription will typically specify the exact mode and pressure settings you need — the Lumis 150’s extra iVAPS mode is generally reserved for more complex respiratory cases rather than routine sleep apnea.
Choosing the Right CPAP Mask (and BiPAP Mask)
The best CPAP machine in the world won’t help if the mask doesn’t fit — mask discomfort is one of the top reasons people abandon therapy in the first month. There are three main styles, and each suits a different breathing pattern and sleep position.
| Mask Type | Coverage | Best For | Consider If |
|---|---|---|---|
| Nasal pillow mask | Seals at the nostrils only | Side sleepers, people who feel claustrophobic in bulkier masks, glasses wearers, those with facial hair | You breathe through your mouth at night, or need higher pressure settings |
| Nasal mask | Covers the nose only | Most first-time users — balances comfort, stability, and a secure seal | You have frequent nasal congestion |
| Full face mask | Covers nose and mouth | Mouth breathers, people with nasal blockages, higher pressure therapy (common with BiPAP) | You want the smallest, lightest option available |
Pressure setting matters too: higher pressures (more common with BiPAP therapy) generally need the more secure seal of a full face mask, while lower to moderate CPAP pressures work well with nasal or nasal pillow styles. Browse ResMed AirFit and BMC options on our CPAP mask page or the BiPAP mask page, and see our dedicated guide to choosing the right mask for a fit walkthrough. Most people need to try a style or two before landing on the one they’ll actually keep wearing — that’s normal, not a sign the therapy isn’t working.
Buying vs Renting a CPAP or BiPAP Machine
Not everyone wants to commit to buying a machine outright — especially right after a diagnosis, before you know how well you’ll tolerate therapy, or if the need is temporary (post-surgery, a family member visiting, or a doctor’s short-term trial period). Renting a CPAP machine on rent or a BiPAP machine on rent lets you start therapy immediately without that upfront decision, and most rental plans let you upgrade to a purchase later if the device works well for you.
A few things worth checking before you rent or buy either type of sleep apnea machine:
- Whether the plan includes a humidifier, tubing, and a starter mask, or whether these are separate.
- Servicing and sanitization standards for rental units between users.
- Whether rental duration is flexible on a month-to-month basis or tied to a fixed minimum term.
- Delivery and setup support, especially for a first-time user unfamiliar with mask fitting.
You can compare current options on our CPAP machine rental page and BiPAP machine rental page, or view certified pre-owned units on our pre-owned CPAP machines page if you’re looking for a lower-cost way to own rather than rent.
Keeping Your CPAP Machine Working the Way It Should
A CPAP or BiPAP machine is only as effective as its upkeep. Water chambers, tubing, and masks all need regular cleaning to prevent mold, bacteria buildup, and mask seal degradation — all of which quietly reduce how well the therapy actually works, even if the machine itself is running fine. We’ve covered the full routine, including what to clean daily versus weekly, in our guide on how to properly clean your CPAP/BiPAP machine.
If you’re supporting a partner who’s just started therapy, adjusting to a machine in the bedroom can take some getting used to for both of you — our post on supporting a partner with sleep apnea covers that side of it.
Frequently Asked Questions
What is the difference between a CPAP machine and a sleep apnea machine?
“Sleep apnea machine” is the general term for any device that treats sleep apnea by delivering pressurized air — CPAP, APAP (auto-adjusting CPAP), and BiPAP machines are all types of sleep apnea machines. CPAP specifically refers to the continuous, single-pressure version.
Is the ResMed AirSense 11 better than the AirSense 10?
Not strictly “better” — they deliver the same core AutoSet therapy across the same pressure range. The AirSense 11 is more compact, uses a touchscreen instead of a dial, and includes built-in app connectivity and coaching features that were more limited on the AirSense 10.
Can I rent a CPAP machine instead of buying one?
Yes. CPAP machine rental is a common option for people who are newly diagnosed, recovering from surgery, or who want to trial a device before committing to a purchase. See our CPAP machine rental page for current options.
How do I know if I need a CPAP or a BiPAP machine?
This is determined by your sleep study and your treating physician — not personal preference. CPAP is typically first-line therapy for standard obstructive sleep apnea; BiPAP is usually recommended for more complex cases, higher pressure needs, or when someone has struggled to tolerate CPAP.
What is the ResMed Lumis 150 used for that the Lumis 100 isn’t?
The Lumis 150 VPAP ST adds iVAPS (intelligent volume-assured pressure support) with AutoEPAP and a wider pressure range, which supports more complex ventilation needs. The Lumis 100 covers standard CPAP, S, T, and ST modes without iVAPS, and suits most home BiPAP users.
Which CPAP mask is best for a first-time user?
A nasal mask is usually the recommended starting point — it balances comfort and seal stability for most people. If you breathe through your mouth at night or have nasal congestion, a full face mask is generally a better starting choice.
Do CPAP and BiPAP machines require a prescription in India?
Reputable suppliers generally require a sleep study report and, in many cases, a doctor’s prescription before dispensing a CPAP or BiPAP machine, since pressure settings need to be configured to your specific therapy needs.
How often should I replace my CPAP mask and tubing?
As a general guideline, masks and cushions are typically replaced every three to six months, tubing every six months, and filters monthly — more often with heavy use. Check the specific manufacturer guidance for your model.
Still unsure which ResMed CPAP or BiPAP machine fits your prescription? Get expert advice from our team, or contact us directly to talk through your sleep study results and options.