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CLARCOR Air Filtration Products, Inc. (CLC Air) was founded in 1964 and manufactures HVAC filtration products under the Purolator brand name. Since its founding, the Purolator brand of air filtration products has provided its customers with high quality products and the best brand name recognition in the HVAC industry. Purolator products can be found everywhere, in retail outlets, commercial buildings, office complexes, industrial plants, healthcare facilities, schools, universities, and public and government buildings.