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Somnetics Transcend CPAP Machine Review

Written by Tochukwu Ikpeze Staff Writer
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Look & Feel

The Transcend Micro Auto-CPAP weighs less than half a pound and is shaped like a ball that has been flattened on the top and the bottom. The machine lacks a screen and is controlled using four buttons.

Ideal For

  • People looking for an ultra-lightweight travel CPAP machine
  • APAP users interested in a travel-size model
  • Travelers who appreciate features such as pressure relief and ramp settings

Who should keep looking

  • People who experience dry or irritated sinuses when using a CPAP machine without a humidifier
  • Shoppers on a tight budget
  • Those seeking an everyday model to use at home
  • Price

    $870

  • Dimensions

    3.6″ x 3.6″ x 2.4″

  • Noise Rating

    27 dBA

  • Weight

    0.48 lbs.

Designed for travel, the Somnetics Transcend Micro Auto-CPAP is a remarkably small and lightweight continuous positive airway pressure (CPAP) machine with automatic positive airway pressure (APAP) capabilities.

Deciding whether a CPAP machine is right for you is easier when you understand its benefits and drawbacks. To help you make a decision, we’ll walk you through the Transcend Micro Auto-CPAP’s features and performance, then take a closer look at important information you should know before you buy.

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Other Models in the Transcend Series

  • Transcend 3: Although the Transcend 3 is also a travel-sized APAP machine, it is larger than the Transcend Micro and is also designed for day-to-day use. 
  • Transcend 365: The Transcend 365 is larger than both the Transcend Micro and the Transcend 3 while still remaining travel-friendly. While it lacks APAP capabilities, it does offer additional features, such as integrated heated humidification.

What You Need to Know About the Somnetics Transcend Micro Auto-CPAP Machine

The Transcend Micro is a CPAP machine with APAP capabilities. This means that it can be programmed with the user’s prescribed fixed air pressure level, or it can use an algorithm that automatically determines the lowest air pressure level needed to keep the airway open from breath to breath within a set pressure range.

Weighing in at less than half a pound, the Transcend Micro is easy to slip into a carry-on bag and has been approved by the Federal Aviation Administration for in-flight use. It also provides appealing features, such as expiratory pressure relief and a drying mode, which are not always offered by travel CPAP machines. 

What Comes With It

As long as you have already chosen your CPAP mask, the Transcend Micro comes with everything needed to use it straight out of the box, including a 6-foot AirFlex hose. 

The Transcend Micro also comes with a WhisperSoft muffler kit, which can be installed between the machine and the hose to dampen vibrations and reduce noise.

Features You Might Like

The Transcend Micro offers many common features of a standard CPAP machine — including a ramp mode, expiratory pressure relief, and automatic stop and start — in a travel-friendly format. The machine also boasts less common features, such as a 30-minute drying mode and the WhisperSoft muffler kit.

Size and Cost of This Machine

Weighing less than half a pound and with a footprint that is slightly larger than a baseball, the Transcend Micro is unusually small even for a travel CPAP machine. Frequent travelers of all types are likely to appreciate this feature, as the Transcend Micro fits easily into luggage when flying or in a backpack when camping.

The Transcend Micro’s price-point is slightly above average for a travel CPAP machine, though the inclusion of APAP capabilities may increase its value for some consumers. However, shoppers should consider the cost of any accessories they may want to purchase when deciding whether the Transcend Micro fits their budget.

How This APAP Machine Performs


Breaking down a CPAP or APAP machine’s performance into different categories can make it easier to choose the right device for your needs and preferences.

The Transcend Micro is controlled on a day-to-day basis using four simple buttons on the top of the device. However, to adjust the machine’s settings, owners must download software that’s only compatible with computers that use a Windows operating system. Owners can also download the MySleepDash app to a smartphone that runs on an Android or iOS platform. While the app lets users view and share therapy data, it cannot control the machine’s settings.

The Transcend Micro can be used with any CPAP mask that has a standard 22-millimeter connection, but it is only compatible with Transcend Micro AirFlex hoses and cannot be used with standard CPAP tubing.

Air pressure for CPAP machines is measured in centimeters of water pressure (cm H2O). The Transcend Micro has a range of 4 to 20 cm H2O, which is the standard range of most CPAP machines and is likely to fulfill the needs of most users.

When operating at 10 cm H2O, the Transcend Micro has a sound level of about 31 decibels, which is slightly noisier than the average CPAP machine. Light sleepers or those who sleep with a partner may prefer to use the device with the included WhisperSoft muffler, which is engineered to reduce noise and vibration.

The Transcend Micro does not feature humidification or air temperature regulation. Owners can purchase the AirMist HME kit, which provides waterless humidification but cannot be customized to change the humidity level.

Cleaning your CPAP machine and accessories helps ensure they remain sanitary and in good condition. The company recommends that owners clean their Transcend Micro AirFlex tubing, including optional accessories like the WhisperSoft muffler and AirMist HME, at least once a week with warm, soapy water. Rinse all components thoroughly and let them fully air dry before subsequent use.

The Transcend Micro device itself can be cleaned by wiping it with a damp, lint-free cloth. CPAP users should also wash their mask with mild soap and warm water at least once a week.

The Transcend Micro’s lightweight design and small footprint make it extremely portable. However, people who wish to use the machine in areas without electricity must purchase the Transcend P8 Multi-Night Battery. For people who plan to be off the grid for an extended period of time, the company also sells a portable solar charger for the P8 battery.

Use this SleepApnea.org link for the most current discount on Somnetics products

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What Do Customers Have to Say About the Somnetics Transcend Micro?

Most reviews of the Transcend Micro are positive, with its drying mode and small size receiving the most praise. Reviewers also appreciated how quietly the machine runs when using the WhisperSoft muffler. However, some users reported having to adjust the muffler occasionally to ensure it works properly. 

The Transcend Micro’s lack of a humidifier has been more divisive among reviewers. While many users noted that the smaller size is a worthwhile trade-off, others found that the separately purchased AirMist HME did not provide them with enough CPAP humidification to prevent sinus irritation.

Trial, Warranty, and Shipping Policies

AvailabilityThe Transcend Micro Auto-CPAP is available from Sleep Doctor in all 50 states and several U.S. territories. It is also sold by various online and brick-and-mortar CPAP shops and medical supply stores. Like all CPAP machines, the Transcend Micro can only be purchased with a prescription.
ShippingSleep Doctor offers free shipping to the contiguous U.S. Shipping fees apply to orders in Alaska, Hawaii, and U.S. territories. Policies from other sellers may vary.
ReturnsCPAP machines purchased from Sleep Doctor are eligible for return within 60 days of delivery if they are unused and show total registered user hours of 0. Other retailers may have different policies, but CPAP machines generally do not come with trial periods.
WarrantyThe manufacturer offers a two-year limited warranty for the Transcend Micro that covers defects in materials or workmanship. It does not cover damage due to accidents or improper use. Other terms and conditions apply.

Still have questions?

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Medical Disclaimer: This content is for informational purposes and does not constitute medical advice. Please consult a health care provider prior to starting a new treatment or making changes to your treatment plan.