PITTSBURGH — Global safety equipment manufacturer MSA Safety Incorporated (NYSE: MSA) today announced that it has received notification from the Safety Equipment Institute (SEI) that the company's FireHawk® M7XT Air Mask, which provides firefighters with respiratory protection in hazardous or life-threatening environments, has been certified as compliant to the 2013 Edition of the National Fire Protection Association's (NFPA) 1981 performance standard for Open-Circuit Self-Contained ...This story is related to the following:Fire Fighting Equipment & Supplies |