DeVilbiss CPAP Machine Reviews

Maria Christina Lalonde

As the legend goes, a country doctor named Dr. Allen DeVilbiss first invented an atomizer designed to help his patients breathe easier in his backyard tool shed in 1888.

From humble origins in the doctor’s backyard, DeVilbiss Healthcare has grown into a global leader in respiratory medical manufacturing. Today, DeVilbiss designs, manufactures, and distributes respiratory therapy devices and medical technologies  to more than 100 countries around the world. The company’s commitment to technological advances in the respiratory therapy world has earned them an A+ rating from the BBB.

DeVilbiss Healthcare manufactures a line of state-of-the-art Continuous Positive Airway Pressure (CPAP) machines. Widely regarded as the most effective way to treat obstructive sleep apnea (OSA), CPAP devices deliver pressurized air through the nasal passages to help users breathe easier during sleep.

In this guide, we’ll discuss the five different models of DeVilbiss CPAP machines, including the IntelliPAP Standard, Standard Plus with SmartFlex, AutoAdjust, Bilevel S, and AutoBilevel. To help you identify the right device for your individual needs, we’ll compare specs and explain the differences in their technologies.

DeVilbiss CPAP Machines - models, specs, pricing


IntelliPAP Standard IntelliPAP Standard Plus with SmartFlexIntelliPAP AutoAdjustIntelliPAP Bilevel SIntelliPAP  AutoBilevel
CPAP price (est.):$325$395$490$945 $1,145
CPAP with humidifier price (est.): $395$495$545$1,025 $1,225
Dimensions (CPAP only):4.2″H x 6.5″W x 6.9″D4.2″H x 6.5″W x 6.9″D4.2″H x 6.5″W x 6.9″D4.2″H x 6.5″W x 6.9″D4.2″H x 6.5″W x 6.9″D
Dimensions (CPAP & humidifier):6.4″H x 6.5″W x 8.4″D6.4″H x 6.5″W x 8.4″D6.4″H x 6.5″W x 8.4″D6.4″H x 6.5″W x 8.4″D6.4″H x 6.5″W x 8.4″D
Weight (CPAP only, est.):2.7 lbs2.7 lbs2.7 lbs2.7 lbs2.7 lbs
Weight (CPAP, humidifier & case est.):4.45 lbs4.45 lbs4.45 lbs4.45 lbs4.45 lbs
Hose length: 6 ft or 10 ft 6 ft or 10 ft 6 ft or 10 ft 6 ft or 10 ft 6 ft or 10 ft
Operating Pressure range:3 to 20 cmH20 (.5 increments) 3 to 20 cmH20 (.5 increments) 3 to 20 cmH20 (.5 increments) 3 to 25 cmH20 (.5 increments) 3 to 25 cmH20 (.5 increments)
Humidifier capacity:400 mL400 mL400 mL400 mL400 mL
Sound volume: 26 dbA26 dbA26 dbA26 dbA26 dbA
Ramp time:0 to 45 min in 5-minute increments 0 to 45 min  in 5-minute increments 0 to 45 min  in 5-minute increments 0 to 45 min  in 5-minute increments 0 to 45 min  in 5-minute increments
Power consumption:65 W65 W65 W65 W65W
Operating altitude (est.):Up to 9,000 ft Up to 9,000 ft Up to 9,000 ft Up to 9,000 ft Up to 9,000 ft
Automatic on/off?YesYesYesYesYes
Sleep data?YesYesYesYesYes
Warranty length: 3 years3 years3 years3 years3 years
Carrying case included?YesYesYesYesYes

IntelliPAP Standard

The first and least expensive member of the IntelliPAP CPAP series, the DeVilbiss IntelliPAP Standard boasts the same compact design and many of the essential features of the later models. Like all four models, the DeVilbiss IntelliPAP Standard CPAP machine includes an optional heated humidifier that can be attached to form a single unit.

Tuck customer satisfaction rating: 95% (372 customer reviews)

  • Sophisticated, compact construction designed to be quiet, discreet, and travel-friendly
  • User-friendly interface naviated with three large buttons
  • SmartCode feature tracks sleep performance and generates reports on therapy and usage data over 1-day, 7-day, 30-day, and 90-day periods
  • Least expensive model
  • Lacks more advanced features of later models, like event detection and SmartFlex exhale pressure relief
  • Data reporting limited compared to other models, lacking Expiratory Puff Index (EPI), Non-Responding Event Index (NRI) and (Apnea Hypopnea Index AHI) reporting

IntelliPAP Standard Plus with SmartFlex

The IntelliPAP Standard Plus takes comfort a step further with the introduction of SmartFlex, a technology that helps relieve machine pressure as you exhale. The SmartFlex system incorporates three levels of pressure relief and six different inspiratory and six rounding options to customize transitions between inhaling and exhaling.

Tuck customer satisfaction rating: 97% (91 customer reviews)

  • SmartFlex technology helps you to breathe easier and limit sudden pressure changes that cause disruptions in sleep
  • SmartCode Tracking system records advanced therapy data on hypopnea, apnea, exhale puff events, and more
  • SmartCode data can be retrieved remotely
  • Some customers report FlexFlow function feels initially strange and requires getting used to

IntelliPAP AutoAdjust

The versatile IntelliPAP AutoAdjust can function both as a traditional fixed-pressure CPAP machine and an auto-adjusting device. The auto-adjusting feature relies on an algorithm to learn your breathing patterns and changes pressure in response to hypopnea, expiratory puffs, and other events and conditions during the night.

Tuck customer satisfaction score: 93% (778 customer reviews)

  • Offers optional self-adjusting mode that automatically raises or lowers pressure on a breath-by-breath basis
  • Automatically detects mask leaks and snoring
  • Includes SmartFlex technology to provide exhale pressure relief and SmartCode data tracking
  • Some customers report high noise levels

IntelliPAP Bilevel S

Recommended for patients who require higher pressure to maintain open airways, the IntelliPAP Bilevel S machine offers a pressure range of 3 to 25 cm H20 compared to the 3 to 20 cm H20 of the previous three models. The Bilevel S can operate in traditional CPAP or in Bilevel mode, which delivers two different pressures for inhaling and exhaling.

Tuck customer satisfaction score: 96% (65 customer reviews)

  • Wider range of pressure settings
  • Features optional bilevel mode with distinct pressure for inhalations and exhalations
  • Includes Flow Rounding technology designed to create more natural transitions in and out of inspiratory positive air pressure (IPAP) and expiratory positive airway pressure (EPAP)


  • No auto-adjusting setting

IntelliPAP AutoBilevel

The newest IntelliPAP machine from Devilbiss Healthcare, the IntelliPAP AutoBilevel combines traditional CPAP with auto-adjusting and bilevel technologies into one machine. On auto-bilevel mode, the system utilizes an algorithm to self-adjust pressure on both inhalation and elation.

Tuck customer satisfaction score: 97% (62 customer reviews)

  • Operates as traditional CPAP, auto-adjusting, bilevel, or auto-bilevel device
  • Wider range of pressure settings
  • Includes SmartCode data tracking and Flow Rounding technology
  • Most expensive model

Which DeVilbiss CPAP machine will work for me?

The IntelliPAP machines are virtually identical in size and design, and all offer an optional attached humidifier. Choosing from the different models largely comes down to determining whether traditional CPAP, auto-adjusting, bilevel, or a combination of the three technologies is best for you. We’ve discussed these three different technologies and sleepers they are best suited for below.

    • CPAP: A traditional CPAP like the IntelliPap Standard or the IntelliPAP Standard Plus with SmartFlex delivers pressure at a set, predetermined pressure level through the night. This type of machine is generally recommended for sleepers with mild to moderate sleep apnea.
    • Auto-adjusting: Sometimes called an APAP or AutoPAP machine, an auto-adjusting device like the IntelliPAP AutoAdjust or the IntelliPAP AutoBilevel uses a complex algorithm to detect and adjust pressure as needed throughout the night. Auto-adjusting machines are recommended for those who tend to toss and turn during the night, as pressure needs may change depending on position. They’re also recommended to those with seasonal allergies, as pressure needs may change due to congestion during the night or according to the seasons.
    • Bilevel: Sometimes referred to as BiPAP machines, bilevel devices like the IntelliPAP Bilevel S or the IntelliPAP AutoBilevel deliver two different pressures: one corresponding to inhalation and one corresponding to exhalation. Like many Bilevel devices, the two IntelliPAP machines with bilevel modes feature a wider pressure setting range. Bilevel machines like these are recommended to patients who with higher inhalation pressure needs, since exhaling over high pressure can be difficult.   

Even if your pressure needs are not high enough to require a bilevel device, you may want to skip the IntelliPAP Standard  if you find that exhaling while wearing a CPAP device can be challenging or uncomfortable. In addition to having more limited data reporting, the IntelliPAP Standard  is missing the SmartFlex exhalation pressure relief feature of the other two non-bilevel devices.

Company Information

Customer Service

8  out of 10 customer experiences show consumers have had a positive experience with DeVilbiss Healthcare.

Company History

DeVilbiss Healthcare was founded as The DeVilbiss Manufacturing Company in 1888.DeVilbiss Healthcare was founded as The DeVilbiss Manufacturing Company in 1888.

Corporate Address

100 DeVilbiss Drive
Somerset, PA 15501

BBB Rating

DeVilbiss Healthcare’s current BBB rating is A+.

Physical Stores

DeVilbiss does not operate any brick-and-mortar stores or showrooms; all purchases and deliveries are arranged through accredited retailers.

Contact DeVilbiss Healthcare

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