Founded in 1937, General Filters’ professional experience spans three generations.  Manufacturers of Indoor Air Quality (IAQ) Products and Oil Filters, our plant management team implements strict quality and assurance systems to deliver premium dependable products that market under the brand names GeneralAire®, General, Unifilter®, and Gar-Ber. Certificates of recognition, approvals and associations for all related markets include: “UL”, “ETL”, “CSA”, “AHRI”, “HARDI”, “ACCA”, “NAOSHM”, “NEFI”, “BlueHawk”, “A-D”, “KWGA” and “IIAQC”.