This year, Glasfloss Industries celebrates its 65th anniversary in the air filtration industry in 2001. Founded in 1936, the company claims to be the world's oldest manufacturer of hvac filters. With four plants strategically positioned in the U.S., Glasfloss continues to offer the finest air filtration products available in the growing IAQ market. For more information on Glasfloss Air Filtration Products, please call 214-741-7056 or visit