A look at the features and options related to one of the smallest and most portable CPAP machines on the market

When travel beckons or space is at a premium, finding a CPAP machine that can keep up with your lifestyle without sacrificing therapy quality becomes essential.

Add in the challenge of packing bulky equipment through airports or fitting a full-size machine into limited hotel room space, and the importance of choosing a truly portable option becomes even more apparent.

This review will give an overview of the essential features and considerations of the Transcend Micro Travel CPAP Machine to give you a clearer idea of whether it’s the right machine for your sleep apnea needs.

Product Size and Design

The Transcend Micro Travel CPAP Machine is currently the smallest and lightest CPAP machine available on the market. The entire machine measures approximately 9.2 centimetres long, 9.2 centimetres wide, and 6.1 centimetres tall—roughly the size of a baseball.

Weighing just under 218 grams, it’s light enough to fit comfortably in a carry-on bag or even a coat pocket. This combination of ultra-compact size and featherweight design makes it ideal for frequent travelers, campers, business professionals, and anyone who needs reliable CPAP therapy on the go.

The machine features a unique spherical shape with a flat top and bottom, allowing it to sit securely on a nightstand or bedside surface. The flat top houses four simple control buttons—power, Bluetooth, pressure ramp, and dry cycle—making operation straightforward even in unfamiliar hotel rooms or low-light camping situations.

Performance

Despite its remarkably small size, the Transcend Micro can accommodate most pressure prescriptions, with both CPAP and APAP (Auto-CPAP) modes offering pressure settings ranging from 4 cm H2O to 20 cm H2O. This range covers the vast majority of sleep apnea therapy needs.

The machine operates at approximately 27 decibels—quieter than a whisper and and slightly louder than a ticking watch. This makes it one of the quietest travel CPAP machines available, and it’s even quieter than many full-size home machines.

The Transcend Micro also features automatic altitude adjustment, compensating for changes in air pressure up to a maximum altitude of 8,000 feet. This makes it particularly well-suited for mountain travel or in-flight use.

Included Parts and Accessories

The Transcend Micro Travel CPAP Machine comes with everything you need to start therapy, except for a CPAP mask which is purchased separately.

Each package includes:

• Transcend Micro Auto Travel CPAP Machine
• Transcend Micro AirFlex 6-Foot Hose
• Transcend WhisperSoft Muffler Kit
• AC Power Adapter (100-240V, compatible with North American outlets)
• Reusable Air Filter (installed)
• Travel Pouch
• User Manual and Quick Start Guide

Optional accessories available for separate purchase include:

• Transcend PowerAway Battery for off-grid use
• AirMist Heat Moisture Exchange (HME) Cartridges for waterless humidification
• Replacement Air Filters
• International plug adapters for overseas travel
• Solar charger for the battery for off grid trips
• Hard shell machine carrying case
• Large soft bag for machine, tubing, and accessories

For most users, this means you’ll only need to pair the machine with your preferred CPAP mask and you’re ready to travel.

Key Features

While portability is the headline feature, the Transcend Micro includes several comfort and convenience options that make it competitive with full-size home machines.

Universal Mask Compatibility

Unlike some travel CPAP machines that require proprietary masks or special adapters, the Transcend Micro works with virtually any CPAP mask on the market. Whether you prefer nasal pillows, nasal masks, or full-face masks, you can use your favorite mask without purchasing additional equipment.

This universal compatibility not only saves money but also ensures you maintain the same comfort level you’re accustomed to at home. The only exception is masks designed exclusively for the ResMed AirMini, which are not compatible with any other machines.

GentleRise Ramp Technology

The GentleRise feature helps ease you into therapy by starting at a lower, more comfortable pressure and gradually increasing to your prescribed level over time. The ramp period is fully adjustable from zero to 45 minutes, allowing you to customize the experience to match your preferences.

This feature is particularly helpful for new CPAP users or those who have difficulty falling asleep with full pressure delivery. You can also disable the ramp function entirely if you prefer immediate full-pressure therapy.

AirRelief Pressure Relief Technology

The AirRelief feature automatically reduces air pressure when you exhale, making breathing feel more natural and comfortable. By lowering exhalation pressure while maintaining inhalation pressure, this technology helps keep your airway open without the feeling of breathing against resistance.

This pressure relief makes the therapy experience more comfortable and can help improve compliance, especially for users new to CPAP therapy.

WhisperSoft Muffler for Enhanced Quiet Operation

While the machine itself operates at an impressively quiet 27 decibels, Transcend includes the WhisperSoft Muffler to further reduce noise from air moving through the tubing. The muffler attaches between the machine and the hose, dampening sound and vibration.

This additional sound reduction makes the Transcend Micro an excellent choice for light sleepers or those sharing a room with a partner.

30-Minute Drying Mode

A standout feature that sets the Transcend Micro apart from competitors is its built-in drying function. With the press of a button, the machine runs a 30-minute drying cycle that blows air through your mask and tubing to remove excess moisture.

This helps prevent bacteria and mold growth, eliminates unwanted odors, and keeps your equipment fresh and ready to use. The drying mode is especially valuable when traveling, as it eliminates the need to manually dry equipment in hotel bathrooms or wait for components to air dry before packing.

Waterless Humidification Option

While the Transcend Micro doesn’t include a traditional heated humidifier, it’s compatible with the optional AirMist Heat Moisture Exchange (HME) system. This waterless humidification technology captures heat and moisture from your exhaled breath and recirculates it back when you inhale.

The HME system uses small, disposable cartridges that require no distilled water, eliminating the bulk and hassle of traditional humidifier tanks. The AirMist HME works with any CPAP mask that doesn’t have a short tube extending from the mask cushion.

Each HME cartridge lasts approximately 3-7 days before needing replacement.

Portable Battery Compatibility

For camping trips, power outages, or overnight flights, the Transcend Micro is compatible with the optional PowerAway Battery. This compact battery weighs just over a pound and can power the machine for up to 14-17.5 hours on a single charge, depending on pressure settings and whether humidification is used.

The battery recharges in less than four hours and can also function as a backup power supply when plugged into a wall outlet. The combined weight of the machine and battery is still only just over 680 grams—lighter than most full-size machines alone.

SleepStart Auto On/Off Function

The SleepStart feature automatically begins therapy when you put on your mask and breathe normally, and stops when you remove it. This eliminates the need to fumble for power buttons in the dark or remember to turn the machine on before bed.

While this feature works reliably with most mask configurations, some setups may require manual power button operation.

MySleepDash App and Bluetooth Connectivity

The Transcend Micro connects to the MySleepDash mobile app via Bluetooth, allowing you to monitor your therapy data, track compliance, and adjust comfort settings from your smartphone. The app is available for both iOS and Android devices.

Through the app, you can view usage hours, mask leak data, AHI (Apnea-Hypopnea Index), pressure information, and other therapy metrics. You can also download or share this data with your healthcare provider for remote monitoring.

Since the machine itself doesn’t have a display screen, the app serves as the primary interface for viewing therapy information and adjusting settings.

FAA-Approved for In-Flight Use

The Transcend Micro is FAA-compliant and approved for use on commercial flights. The automatic altitude adjustment ensures proper pressure delivery even at cruising altitude.

When flying, keep the machine in your carry-on luggage and check with your specific airline about their policies for using medical devices during flights.

Considerations

While the Transcend Micro offers exceptional portability and convenience, there are several factors to consider before making a purchase decision.

No Built-In Heated Humidifier

The most significant limitation for many users is the absence of a traditional heated humidifier. Many CPAP users rely on heated humidification to prevent dry mouth, sore throat, nasal congestion, and airway irritation—especially in dry climates or during colder seasons.

While the optional AirMist HME waterless humidification system provides an alternative, it requires an additional purchase and ongoing replacement cartridges every 3-7 days, adding to the long-term cost of ownership. Users accustomed to the comfort of heated humidification may find the HME system less effective than traditional water-based humidifiers.

No Air Temperature Control

Unlike many full-size CPAP machines, the Transcend Micro does not offer air temperature control. This limitation may cause discomfort in colder climates or for users who prefer warmer airflow during therapy.

For travelers who frequently move between different environments and room temperatures, this lack of temperature adjustment can reduce overall comfort and therapy adherence.

Higher Upfront Cost

The Transcend Micro is positioned at the higher priced end of the CPAP market. Most insurance plans do not cover secondary CPAP devices, meaning this will likely be an out-of-pocket expense.

Additional accessories like the PowerAway Battery (for off-grid use) and AirMist HME cartridges (for humidification) represent further costs beyond the initial machine purchase.

Battery Sold Separately

While the Transcend Micro is battery-compatible, the PowerAway Battery is not included with the machine and must be purchased separately. This represents a significant additional expense for users who need portable power for camping, travel to areas with unreliable electricity, or in-flight use.

Limited Data Tracking

The therapeutic tracking algorithm in the Transcend Micro is less comprehensive than many full-size home machines. Users don’t receive as complete a picture of their therapy data and sleep quality metrics as they would with more advanced systems.

While this limitation may not be critical for occasional travel use, it could be a concern for those considering the Transcend Micro as their primary CPAP device.

Not Ideal as a Full-Time Primary Machine

The Transcend Micro is specifically designed as a travel CPAP machine. While it delivers effective therapy, the lack of heated humidification, air temperature control, and comprehensive data tracking make it less suitable for full-time, everyday use compared to full-size home machines.

Healthcare professionals generally recommend using travel CPAP machines as secondary devices for portability needs while maintaining a full-featured home unit for primary therapy.

Ongoing HME Cartridge Costs

If you choose to use the optional AirMist HME system for humidification, you’ll need to factor in the recurring cost of replacement cartridges. With cartridges lasting only 3-7 days, frequent travelers or full-time users will need to purchase cartridges regularly, adding to the total cost of ownership over time.

Warranty

The manufacturer backs the Transcend Micro with a two-year warranty covering defects in materials and workmanship. This standard manufacturer warranty provides peace of mind for your investment.

Transcend offers customer support resources including an online knowledge base, frequently asked questions, and phone support should you encounter any issues or have questions about operation.

Overall Thoughts

The Transcend Micro Travel CPAP Machine represents a significant achievement in portable sleep therapy technology. Its ultra-compact size and featherweight design make it the most travel-friendly option currently available, while its comprehensive feature set ensures you don’t sacrifice therapy effectiveness for portability.

The universal mask compatibility is a major advantage over competitors that require proprietary accessories, potentially saving hundreds of dollars and allowing you to travel with equipment you already know and trust. The included WhisperSoft Muffler, 30-minute drying mode, and quiet operation further distinguish this machine from other travel options.

However, the lack of built-in heated humidification and air temperature control are legitimate considerations, particularly for users who rely on these features for comfort. The higher upfront cost and additional expenses for batteries and HME cartridges mean this device requires a more significant financial investment than some alternatives.

With both CPAP and APAP modes, pressure settings up to 20 cm H2O, and advanced comfort features like GentleRise ramp and AirRelief pressure relief, the Transcend Micro delivers performance comparable to full-size machines in a package that fits in the palm of your hand. For frequent travelers who need reliable therapy on the go, it remains an excellent secondary device to complement a full-featured home machine.

CPAP Supply is Canada’s leading online CPAP supply store in customer satisfaction. Our selection of the latest travel and full-size CPAP machines ensures that you’ll enjoy reliable performance and the latest features whether you’re at home or on the road. Contact us today to discuss if the Transcend Micro Travel CPAP Machine fits your needs or find out more about other options available.