D L Sales Corporation

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Dave Downing & Associates, the leading supplier of clean air filtration products to companies in Arizona for over three decades, rededicate itself to you, their valued customer. As members of The National Air Filtration Association (NAFA) and the American Society of Heating & Refrigeration Engineers (ASHRAE), our company stays on the leading edge of new technology and standards. Dave Downing & Associates has a long history of supplying both large and small companies throughout Arizona and is known for our technical competence and personal dedication to their customers success.