Never go anywhere without your sleep apnea treatment device with the pocket-sized Z1 Travel CPAP machine. This portable CPAP machine is ultra-lightweight and compact, making it perfect for travel. It can be plugged in or powered by the included rechargeable battery. The built-in humidification moisture exchange system returns warm, exhaled air back to the user to create the effect of a humidifier without the added bulk. The Z-Breathe technology of the Z1 CPAP machine helps to reduce pressure during exhale for a normalized breathing pattern.