3M Purification 400 Research Pky, Meriden, CT06450 3M Purification is a Meriden institution. The company designs and produces water and gas filtration and purification…More products for the health care and food and beverage industries as well as residential and industrial settings. Formerly known as Cuno, the company was founded by George Cuno in Meriden in 1912 and grew to international prominence in the water and gas filtration industry. Cuno was acquired by 3M in 2005. By joining forces, these two industrial giants are able to offer cutting-edge technology to clients worldwide.