Otivio WARM is a novel non-invasive (requiring no penetration of the skin) pre-hospital (outside the hospital) treatment device using a pulsating vacuum and Far Infrared Heat to actively heat patients to avoid and/or treat hypothermia (a body temperature lower than 35º celsius). The device is placed on the patient’s arm away from any injuries. As the vacuum pulsates (mimicking the heart) blood is pulled from the core out to the limb, warmed and sent back to the body core. The device is designed specifically for the pre-hospital scenario where portability and ease-of-use is paramount for the survival of patients.