Mask check! Confidence chamber training
Last updated 9/8/2021 at 10:21am | View PDF
Above, Sgt. Paul Ceniceros, right, and Pvt. Andrea Antonio, both with 588th Brigade Engineer Battalion, 3rd Armored Brigade Combat Team, 4th Infantry Division, check the seal on the new protective mask before Antonio enters the confidence chamber Aug. 19 at Fort Carson. Antonio used the current generation M50/M51 series Chemical Biological Radiological Nuclear protection mask while Ceniceros used the M53.

Capt. Tobias Cukale, 3rd Brigade Combat Team, 4th Infantry Division (Iron Brigade)
Soldiers with Chemical Biological Radiological Nuclear (CBRN) Reconnaissance Platoon, 588th Brigade Engineer Battalion, 3rd Armored Brigade Combat Team, 4th Infantry Division, exit the confidence chamber Aug. 19 as they test the M53 protective mask at Fort Carson. The confidence or CBRN chamber provides the opportunity for Soldiers to learn how to properly use their equipment.
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