Sleep apnea syndrome (SAS) is a sleep disorder in which breathing repeatedly stops and starts during sleep.  There are reportedly as many as 2.5 million SAS patients in Japan.  In addition to adverse health effects on patients, including a low blood oxygen level and reduced quality of sleep, it can cause other lifestyle-related diseases, leading to serious social loss.

This auto CPAP (continuous positive airway pressure), JPAP monitors the physiological state of a patient during sleep and automatically assists him/her in breathing.
For each patient, the cost of only one unit of CPAP machine is covered by the Japanese health insurance system; therefore, a second CPAP machine for business trips is not covered.  While JPAP maintains its ideal performance as a machine for home use, the size as a system has been significantly reduced to make it easily portable by reviewing a blower, a controller, and a power supply and employing a humidifier that requires no power supply.