PROTECTIVE MASK FITTING AND DRILL
Channel: PublicResourceOrg
Date: 2010-07-24

PROTECTIVE MASK FITTING AND DRILL - Department of Defense 1962 - PIN 28846 - HOW TO SELECT MASK - PROCEDURES FOR FITTING, TESTING, AND ADJUSTING MASK - STEPS IN EXECUTING MASK DRILL - IMPORTANCE OF DRILL FOR QUICK MASKING FOR SURVIVAL.