In 2000, Camfil, a Europe-based manufacturer of air filters, purchased Farr Co., a U.S.-based manufacturer of air filters, and changed its name to Camfil Farr. Believing the Camfil name to now be well-recognized in the United States, and with operations expanded to Asia and Australia, the company is celebrating its 50-year anniversary in 2013 by returning to its original name, Camfil.