MOODY AIR FORCE BASE, Ga. -- In accordance with AFMAN 10-100 Airman's Manual, 23rd Wing Airmen must remove all hair fasteners, including hair clips and pins, and let hair hang freely before donning a gas mask. This prevents an improper mask fit, which could result in serious illness or death if exposed. (U.S. Air Force photo illustration by Senior Airman Gina Chiaverotti)