Dr. Dan Rini, RINI Technologies, briefs U.S. Air Force Airmen assigned to the 1st Fighter Wing on how to operate the personal cooling suit at Joint Base Langley-Eustis, Virginia, June 18, 2020. The patented personal cooling technology employs a custom designed and uniquely developed set of sub-components including compressors, condenser, evaporator and water pump in one small component package. (U.S. Air Force photo by Senior Airman Anthony Nin Leclerec)