Air Force Airman 1st Class Olavio Benito, 18th Logistics Readiness Squadron cryogenic production technician, increases clarity on an oxygen purity analyzer Sept. 12, 2017, at Kadena Air Base, Japan. Cryogenic production technicians require that all of the liquid oxygen produced in their facility have a minimum purity of percent. ( Air Force photo/Senior Airman Quay Drawdy)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: brew, cold, cryogenics, liquid, nitrogen, oxygen, purifier, purity