R & H Enterprises, W7621 Cr-C, Beaver Dam, WI 53916, US

Glasfloss Industries is one of the world's oldest manufacturers of heating, ventilation and air conditioning air filters. Owned by the same family since 1936, Glasfloss is committed to producing quality air filtration products for a variety of industrial, commercial and residential applications. From disposable panel filters to high efficiency particulate air filters, the company has the products to handle its customers air filtration needs. Its disposable panel filters are rigidly constructed using a progressively dense fiberglass or polyester media to maximize dust-holding capacity. Glasfloss Industries, which is privately held and employs approximately 85 people, is located in Juneau, Wis.