Rain-out and water damage are large contributors to machine failures. The PR System One humidifier and water chamber are breakthroughs in delivering consistent humidity without compromising water management. System One and Dry Box Technology make it possible for the PR CPAP machines to be virtually spill-free. This humidifier can be tilted, shaken, or turned upside down without water leaking back into the device. Even with a chamber filled to the "Full" indicator line, this unit can be transported safely and reliably.

System One Humidity Control

System One Humidity Control Technology analyzes ambient temperature and patient airflow to reach relative humidity at the mask. This prevents rain-out from occurring inside the CPAP tube. System One is the first solution in the industry that accounts for room humidity. Sensors inside and outside the CPAP machine closely monitor changes in humidity and prevents condensation from forming inside the tube.

Dry Box

Several unique designs are incorporated into the humidifier to prevent water from exiting the chamber. To start, Dry Box acts as a reservoir for any water ingress between the machine and humidifier. Also, the air outlet port has been moved from the side of the humidifier onto the top. This centers the entire delivery; minimizing the total water displacement around the hole. The water chamber is outfitted with a one-way valve, between the machine and the humidifier. In the event that the unit is moved, water that manages to escape the chamber gets trapped within the Dry Box.