Document 7RpqqMzN3rJeQoEELGp9bGMYe

Air System Equipment American AirJilterCompanv Inc. 673 Central Avenue, Louisville 8, Ky. In Canada: Darling Brothers. Ltd., Montreal. P.Q. AAL Atmospheric Dust Control Process Dust Control AAF manufactures a complete line of air filtering equipment to be used for the removal of dust, soot, smoke, dirt, bac teria and other foreign matter from the air. Products offered embody the knowledge accumulated from twenty-seven years of intensive research devoted exclusively to the study of dust problems and the development of air cleaning apparatus; the experience gained from designing, building and applying thousands of air filters for every type of commercial and industrial use; and may be relied upon as the most modern equipment in their field of service. The introduction of new high speed operations; the value of ``good house keeping" in maintaining production schedules; a better understanding of the hygienic effects of dust--all these and other factors have made dust control -a necessity in modern industry. Roto-Clone Dynamic Precipitators are an AAF development. The Roto-Clone combines the functions of exhausting, separating and storing dust in a single unit. Its advantages--high efficiency dust separation over a wide range of particle sizes; uniform air delivery; com pact design and ease of installation. THREE TYPES OF ELECTRONIC PRECIPITATORS For more than ten years, research and experimentation with electronic air fil tration have been in progress by AAF en gineers. Today's complete line includes the self cleaning Electro-Matic intro duced in 1939, the washable Electro-Cell with removable collector plates, and the Electro-Airmat with the replaceable Air- mat paper medium. Here is high effi ciency air cleaning in three types of elec tronic filters to meet any requirements for super clean air. Electro-Matic Self-Cleaning Electronic Filter--The Electro-Matic filter is a self cleaning electric precipitator combining advanced principles of electronic air cleaning with notable im provements in construc tion details and method of operation. The self-clean-, ing feature is an exclusive advantage of the ElectroMatic filter. It eliminates the necessity of shutting down the filter for manual cleaning, minimizes the needforpersonal attention, and permits continuous high-efficiency operation. It also allows-thc ElectroMatic filter to be built in standardized self- contained sections, easy to install and with all ex posed parts of the filter casing electrically ground ed for the protection of op erating personnel. Send for Bulletin No. 250. 1136 American Air Filter CoInc. Air System Equipment Electro - Cell Electronic Filter--Incorporates all of the new developments of major importance in elec tronic air filtration using collector plates. Installa tion has been simplified, performance improved and maintenance advantages provided. Built in vertical sections of two widths--2 ft and 3 ft over-all. Collector plate assemblies are remov able; ionizers are hinged and extend the full height of the sections, preventing current loss. A choice of washing collector plate assemblies while in place, or removing assemblies for individual cleaning. Installation is simplified- because -filter is built in vertical sections ra ther than assembled of small units. Parts to be lifted and aligned are light in weight and electrical con nections simplified. Write for Bulletin No. 252. Elect ro-PL E1 e ctronic Filter--The application of an electrostatic charge to a dielectric filtering material is a special AAF research development which began early in 1934. Airmat paper is composed of a number of plies of porous tissue-like cellulose sheets. When elec trically charged the plies tend to separate and each individual fibre becomes a collecting electrode which attracts and holds the dust and smoke particles. Ease and convenience of main tenance is a desired ad vantage of the ElectroPL. Requires neither water nor sewer connections for cleaning, nor spraying with oil to maintain its efficiency. When Airmat American Multi-Duty Self-Cleaning Filter paper has accumulated its dust load it is removed and replaced with clean material by means of a mechanical loader. In case of power failure, filter media provides effective mechanical air fil tration. Send for Bulletin No. 257. American Multi-Duty Automatic Filter provides outstanding features of per formance and design and will accomodate either armored screen panels or die stamped louver panels avail able in three types. Offers advantage of uniformly con stant air supply, fixed opera ting resistance and auto matic operation. Ideal for ventilation and -air -condi tioning service. Available in any size or capacity. Send for Bulletin No. 241-A. AAF UNIT FILTERS Throway Air Filter-- Throway filters are inexpen sive and designed to be dis carded after accumulating dust load. Send for Bulle tin No. I17-E. Airmat Type PL-24-- Airmat filters use standard Airmat medium, renewable after collecting dust load. Used both for comfort and industrial air conditioning. Available with unit frames to be set up to meet any capacity requirement or space condition. Send for Bulletin No. 230-C. M/W Filters--The M/W comes in 2 in. and 4 in. thick nesses . Ideally suited to air cleaning problems encount ered in general ventilation and commercial air condi tioning. Permanent type, washable. Send for Bufletin No. 202. Throway Filter Airmat Type PL-tl Filter 1137 M/W f Filter