Cryogenics give pilots breath of fresh air
Staff Sgt. Chantz Wyant, 31st Logistics Readiness Squadron fuels facility supervisor, fills a liquid nitrogen cart, Aug. 10, 2016, at Aviano Air Base, Italy. Cryogenics Airmen must wear special equipment to protect themselves from the liquid oxygen and nitrogen’s dangerously low temperatures of minus 297 and minus 320 degrees Fahrenheit respectively. (U.S. Air Force photo by Senior Airman Areca T. Bell/Released)