Mine Safety Appliances, or MSA Safety Incorporated, is an American manufacturer and supplier of safety equipment designed for use in a variety of hazardous conditions in industries such as construction, the military, fire service, chemical, oil and gas production.

Established in 1914, MSA Safety Incorporated is the global leader in the development, manufacture and supply of safety products that protect people and facility infrastructures. Many MSA products integrate a combination of electronics, mechanical systems and advanced materials to protect users against hazardous or life-threatening situations. The company's comprehensive product line is used by workers around the world in a broad range of markets, including the oil, gas and petrochemical industry, the fire service, the construction industry, mining and the military. MSA’s core products include self-contained breathing apparatus, fixed gas and flame detection systems, portable gas detection instruments, industrial head protection products, fire and rescue helmets, and fall protection devices.

There's a reason MSA is known worldwide as “The Safety Company.” It's because they harness precision engineering to craft the highest-quality safety products possible so people across the world are able to work in the safest environments.