3M is a diversified technology company with a worldwide presence in the following markets: consumer and office; display and graphics; electro and communications; health care; industrial; safety, security and protection services; and transportation. 3M is a global enterprise characterized by substantial intercompany cooperation in research, manufacturing and marketing of products. Among the 1000's of products 3M manufactures are gas mask systems and filters like the US Military's M-40 gas mask.