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' Air System Equipment Air Filters and Cleaners Air Devices, Inc. Air Diffusers Exhausters Air Filters Filter Holding Frames Hot Water Generators 17 East 42nd St. New York 17, N. Y. f~| qiIqi rST* pjfducts*"5l Agents in All Principal Cities AGITAIR AIR FILTERS HIGH VELOCITY ALL METAL PERMANENT CLEANABLE Designed along entirely new air filtering principles, the high velocity Agitair Type FM -permanent, cleanable air filter assures an amazingly high dust arresting efficiency and dust-holding capacity coupled with sus tained low resistance to air flow. This permits the Type FM to remain in service from two to three times as long as ordinary 2 in. permanent, cleanable filters. Although these new filters do not have to be cleaned as often, particular attention has been paid to their design to make cleaning easier and more thorough. They can be restored to top efficiency easily and quickly. Ruggedly constructed to withstand the me chanical abuse of cleaning. Panels and frames are accurately designed to prevent leakage around the filters. HOW IT WORKS High turbulence of many finely divided air streams is the keynote of Type FM air filter's new design. The media divides the air into countless fine streams and throws those streams into violent cyclonic turbulence. Each little "cyclone" centri fuges its dirt particles against countless viscous-coated "wiping surfaces" which virtually scrub the air clean by catching and holding the dirt. There is no straining action, hence no clogging. HIGH VELOCITY LOWER RESISTANCE The sustained low resistance of the Agitair FM means sustained peak volume of air for longer periods of time ... no loss in air volume ... no danger of unload ing . . . clean filtered air at all times. HIGHER DUST HOLDING CAPACITY Employing a new formula for air filtra-. tion the new Agitair FM holds more dirt, from two to six times as much as ordinary 2 in. permanent, cleanable filters. No early clogging of air passages . . . less fre quent servicing... lower maintenance cost. The Agitair FM Filter is designed to perform at highest efficiency at an ap proach velocity of 432 fpm--or 1200 cfm through a 20 x 20 in. filter panel. The efficiency of the FM is higher* than con ventional filters when operating at the lower design velocity of 288 fpm. 1/3 LESS SPACE REQUIRED The ability of the FM to filter, with greater efficiency, 50 per cent more air at the high velocity of 432 fpm reduces the number of filter panels required. Now TWO FM's will do the work of THREE ordinary filters . . . H less space required . . . fewer units to be installed . . . fewer units to be serviced . . . overall installation and maintenance costs reduced to a mini mum. HIGHER EFFICIENCY At the recommended velocities of other leading all metal viscous type filters, the Agitair FM has a higher dust arresting efficiency, which increases as velocities are stepped up. LONGER SERVICEABLE LIFE The Agitair FM Filter with its greater dust holding capacity, stays in service for longer periods of time; gives efficient per formance for months instead of weeks or weeks instead of days. Less frequent servicing--and ruggedconstruction combine to give the Agitair FM Filter a much longer serviceable life. TWO TYPES OF HOLDING FRAMES Individual Type: Designed and con structed for easy handling in single unit installations, and to facilitate "on the job" assembly, into a multiple unit bank. Pre-Fabrlcated Type: Delivered com pletely knocked down for easy assembly, this Agitair holding frame has been espe cially designed for installations requiring an unusually large number of filter panels and where cramped and unusual condi tions place a limitation on available space. GREASE FILTERS An efficient, all-metal grease catching, grease holding media. Available in all sizes. 1014 Air System Equipment Air Filters Air Filter Corporation 2514G W. Lisbon Ave. Milwaukee 5, Wis. Canadian Representative DOUGLAS ENGINEERING CO.. Ltd. Montreal Manufacturers of AIRCOR AIR & GREASE FILTERS--the PERMANENT, CLEANABLE, VISCOUS TYPE Air Filters, designed for Heating, Ventilating, Air Conditioning and- Industrial Use. AIRCOR designers and engineers have contributed many of today's important develop ments in air filtration, dust, grit and grease elimination for domestic, commercial, and industrial use. Aircor Air Filters are well known for their high efficiency, low air re sistance, great dust-holding capacity and low maintenance cost. The specially designed Aircor filter core is constructed of multiple layers of crimped, electroplated wire mesh arranged to provide an exceptionally large contact area and impart a turbulent swirling action to the air passing through. Galvanized, crimped, expanded metal diffuser acts as a lint arrestor to prevent lint from imbedding in filter media. All units have heavy gauge galvanized steel frames with full welded corners. AIRCOR AIR FILTERS--TYPE Fi & Fs For Air Conditioning, Heating and Ventilating A permanent, cleanable viscous type air filter with special Aircor filter mesh design that traps more dust through complete depth while providing a minimum of air resistance. Dual purpose galvanized expanded metal screen deflects air stream, acts as lint arrestor--an aid in quicker, easier cleaning. Drain slots provided in filter frame. Bulletin 1245A. Initial Resistance'. Rated Efficiency: Type Fi (1 in. thick) .060 in: w. g. at 288 fpm 98.5% Type Fj (2 in. thick) .065 in. w. g. at 288 fpm 98.5% AIRCOR INDUSTRIAL FILTERS For Extra Heavy Duty Specially designed for heavy duty service on industrial applications. Bulletin 146. Initial Resistance: Rated Efficiency: Type Dj (2 in. thick) .09 in. w. g. at 288 fpm 98.5% Type D. (4 in. thick) .10 in. w. g. at 288 fpm 98.5% AIRCOR HOLDING FRAMES For Flat and "V" Arrangements Engineered holding frame design provides ample filtering capacity with a minimum of space. Compact, sturdy, extremely strong and rigid, this frame con struction also simplifies filter removal and cleaning. Fireproof lin ing on back flange. Offers extra protection against air leakage. Available in V-type, or straight banks. Bulletin 600. AIRCOR GREASE FILTER Permanent, cleanable type Aircor Grease Filter specially de signed to re move grease from exhaust ducts--a ne cessity in kitchens, galleys. In creases work ing comfort, decreases fire hazard, protects motors and brushes, and lengthens life of mechanical equipment. Assemblies for mounting on ceiling or wall, single or multiple units--includes holding frames, supporting angles and end seals. Bulletin 346. I. Resistance: .07 in. w. g. at 216 fpm Efficiency Rating: 98.5%. 2 in. Thick. Write Air Filter Corporation for com plete bulletins, 1015