Document O3b2oj9d7n5MyB71NedGLodzM

( ^ Air System Equipment CORPORATION DETROIT AIR FILTER DIVISION DUSTAY DISPOSABLE AIR FILTER PANELS Engineered and constructed to provide greater capacity and longer life. Filter medium is constructed of highly ab sorbent fiber board and designed to change direction of air flow twice as it passes through an outer and inner wafer. ThiB two-wafer design, as shown below, causes a scrubbing action in the air, forcing it to contact the adhesive coated passageways. As the dust is collected it absorbs ad hesive from the reserve by capillary action. This constantly maintains a, dust-collecting film on the wafer sur faces and substantially increases the filter's life. Full air flow is maintained because the dust's volume decreases when it is wetted out by the adhesive. RESISTANCES Filters available with resistances as low as .155 in. water at 400. ft per min. (Graphs showing resistance at various velocities are available for each type of filter.) SIZES Dustay filter panels are available in the following standard sizes: 20 x 25 in. 20 x 20 in. 16 x 25 in. 16 x 20 in. 16 x 23 in. 15 x 20 in. Four separate types, varying in the size of the cellular passages, meet a wide range of applications. Three panel thick nesses, 1 in., 2 in., and 4 in. provide varied capacities to suit individual re quirements. Specific information avail able upon request. "WICK ACTION" PROVIDES GREATER DIRT-HOLDING CAPACITY Dust is collected on the inside cellular passages of a Dustay filter, not just the face surface alone. Dustay's highly ab sorbent filter medium holds more than a pound of adhesive compared to only 3 to 6 ounces for other disposable filters. ADHESIVE Odorless and stable. Has extremely high "wetting out" properties which maintain a tacky surface even after large amounts of dust have been collected. For full details see your nearby Air-Maze representative, or write Air-Maze Cor poration, Cleveland 5, Ohio. 1182 Air System Equipment A Aitmerican liter COMPANY, INC. 673 Central Avenue, Louisville 8, Ky. HERmnn nEison Division In Canada: Darling Brothers, Ltd., Montreal, Quebec ciSJer* THE COMPANY: The American Air Filter Company, Inc. is recognized in ternationally as an authority on air filtration and dust control. In 30 years, its leadership and scientific "know how" have been responsible for installations of AAF equipment in every industrial ized part of the world. Because its con tinuous research, high engineering stand ards and exclusive specialization have been consistently maintained, AAF equipment is used by leading companies in nearly every industry and is specified by leading architects and engineers for use in commercial and industrial air conditioning. The American Air Filter Company Inc. manufactures a complete line of air- filtering and dust control equipment.' A few representative types are shown here. AAF's years of experience and the scope of its knowledge dealing with the elimination of air-bome particles in every form insures maximum efficiency in application, design, manufacture and installation . . . with a minimum of field engineering. Write AAF on all problems of air filtration and dust con trol, or its Herman Nelson Division (see pages 1164-1165) on heating or ventilat ing problems. REPRESENTATIVE AAF PRODUCTS ELECTRONIC PRECIPITATORS: For air cleaning problems requiring super clean air AAF has developed three types of high-efficiency electronic filters. The complete line now available is the result of more than ten years of basic research and experimentation with electronic pre cipitation. It includes the self-cleaning Electro-Matic, the washable Electro-Cell with removable collector plates, and the Electro-Pi with the replaceable Airmat Paper medium. These three electronic filters are now used extensively in both industrial and commercial installations. The wide range of applications has made available engineering data and performance char acteristics covering innumerable air cleaning and air volume requirements. This data simplifies materially the.problem of specifications and selection of filter type. Electro-Matic Self-Cleaning Electronic Precipitator--The Eleetro-matic Precip itator is an automatic electronic pre cipitator combining advanced principles of electronic air cleaning with an ex clusive self-cleaning principle. It elimi nates the necessity of shutting down the filter for manual cleaning, minimizes the need for personal attention and permits continuous high-efficiency oper ation. It also allows the Electro-Matic filter to be built in standardized self- contained sections, easy to install and with all exposed parts of the filter casing electrically grounded for the protection of operating personnel. Send for Bul letin No. 250. 1183