The Aeiomed Everest 3 machine with rechargeable battery pack and heated humidifier is an amazing solution for CPAP users who need a compact, travel-friendly machine. Weighing less than 2 pounds and standing only 5 inches tall, the Aeiomed Everest 3 is conveniently small and lightweight, perfect for a suitcase or bedside table. Not only is this CPAP machine small and travel-friendly, it also includes a portable rechargeable battery pack and travel bag! The Aeiomed Everest 3 has a portable battery pack that can provide a full night's usage of your CPAP. Integrating into the actual CPAP machine, the battery does not add much bulk or weight to the compact machine. Also an integral part of the machine's compact design, the heated humidifier slides onto the bottom of the machine and fits into the coupling with no additional tubing. Retail price $849, asking $500.