
Spc. Mariafernanda Romero, the chemical, biological, radiological and nuclear NCO in charge of Headquarters and Headquarters company, 21st Special Troops Battalion, 21st Theater Sustainment Command, dips an M40/A1 protective mask in water during a cleaning procedure Feb. 26 on Daener Kaserne. Soldiers from the 21st TSC have their protective masks serviced and inspected twice a year to ensure they remain in working condition. The regularly scheduled maintenance includes mask cleaning, drying, reassembly and testing.

Romero disassembles an M40/A1 protective mask with Staff Sgt. Jose Espinoza, a platoon sergeant and armorer also with HHC, Feb. 26 on Daenner Kaserne.
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