Glasfloss Industries, Inc. manufactures HVAC air filters and filtration media, a business begun in New York City in 1936 by engineers Horace R. Lange and Theodore J. Tottis. It grew from a special-size filter fabricator into a full-line manufacturer operating five U.S. manufacturing facilities, and became 100% employee-owned and operated in 2023. The company is particularly known for commercial and industrial air filtration products.
UL Standard 900 Classification
Compliance program
UL Standard 900 Classification (Magna Series)
Compliance program
UL900
Quality certification
UL
Quality certification
Columbus IndustriesColumbus Industries is a global manufacturer of quality filters, founded in 1965. The company designs and manufactures a wide range of air filtration products, including metal mesh, HEPA, pleated, and molecular/gas phase filters, for applications such as OEM, HVAC, air purifiers, and commercial/industrial use. All filters are manufactured in North America, and the company is known for its innovative technologies like Surface Modified Activated Carbon and Foam in Place Gasketing.WEST UNION, OH
American Air Filter Company, Inc. (AAF International)American Air Filter Company, Inc. (AAF International) develops and supplies air filtration products and equipment for commercial, industrial, residential, and energy applications. Founded in 1921 from engineer Bill Reed’s effort to remove dust from his automotive paint shop, AAF has a history of filter innovations and is part of the Daikin Group. Its Energy & Industry division provides filtration equipment and services intended to protect people and industrial assets and improve operating performance.HUDSON, NY
Filter Services of Indiana, IncEstablished in 1991, Filter Services of Indiana, Inc. manufactures and distributes air-filtration products while providing HVAC filtration services for commercial and institutional customers. Headquartered in Indianapolis with service locations across Indiana, the company also performs facility audits, filter changes and indoor-air-quality support. Its technicians are uniformed, trained and insured, and the company is an active National Air Filtration Association member.CINCINNATI, OH
Rensa FiltrationRensa Filtration manufactures commercial and industrial air filters and custom filtration products, with manufacturing and value-added services across North America and Europe. Founded in 2017, the company describes its heritage as Swedish and reports 12 million filters manufactured annually and more than 1,000 employees across its operations.SALISBURY, MD