U.S. Air Force Tech. Sgt. Evan Frock, 86th Aircraft Maintenance Squadron C-130 expediter, carries an ion distribution unit to be tested aboard a C-130J Super Hercules aircraft at Ramstein Air Base, Germany, April 24, 2020. The unit is being tested for use in the disinfection process that takes place on aircraft after medical patient transfer. Bipolar ionization distribution is intended to remove pathogens, allergens and volatile organic compounds from the air. (U.S. Air Force photo by Airman 1st Class John R. Wright)