Engineers design on-skin electronic device providing a personal air conditioner without needing electricity

One day, soldiers could cool down on the military battlefield—preventing heat stroke or exhaustion—by using "wearable air conditioning," an on-skin device designed by engineers at the University of Missouri. The device includes numerous human health care applications such as the ability to monitor blood pressure, electrical activity of the heart and the level of skin hydration.

source https://www.lifetechnology.com/blogs/life-technology-technology-news/engineers-design-on-skin-electronic-device-providing-a-personal-air-conditioner-without-needing-electricity