SIC 3564 Industrial and Commercial Fans and Blowers and Air Purification Equipment

SIC 3564

This category covers firms primarily engaged in manufacturing blowers for general industrial and commercial use, and commercial exhaust fans, ventilating fans, and attic fans. Also included are manufacturers of duct collection equipment and other air purification equipment for heating and air conditioning systems and equipment for industrial gas cleaning systems. It does not include manufacturers of refrigeration and air-conditioning components, which are covered under SIC 3585: Refrigeration and Heating Equipment. Small household fans, kitchen and bath ventilation fans, or other domestic fan components are included in SIC 3634: Electric Housewares and Fans.

NAICS CODE(S)

333411

Air Purification Equipment Manufacturing

333412

Industrial and Commercial Fan and Blower Manufacturing

INDUSTRY SNAPSHOT

In 2003, estimated U.S. shipments of products within the total ventilation equipment manufacturing industry were valued at more than $4 billion. Dust collection and air purification equipment represented the largest segment of the industry, followed closely by centrifugal blowers and fans, and propeller fans and accessories. The air purification segment in particular was experiencing strong growth in the mid-2000s, due to increased attention to the health effects of allergens. In 2005 this segment was projected to nearly triple in value by the late 2000s.

Of the approximately 500 companies in this industry, Ohio, Illinois, California, and North Carolina were the leading states in employment, employing approximately 33 percent of the industry's total workforce.

ORGANIZATION AND STRUCTURE

U.S. industry depends on the low-pressure, high-volume movement of air. Without it, much industrial and commercial activity would quickly suffocate. Consequently, the fan can be found in applications as diverse as huge blowers used to bubble air through sewage water and industrial waste, to street cleaners and industrial leaf blowers. In modern shopping centers and commercial/industrial strip malls, unnoticed roof ventilators silently exchange contaminated air for fresh; the attic fan performs the same function for residential buildings. Heating and air conditioning systems depend on fans to move heat away from coils and heat exchangers and into the structure, and to feed the fossil fuel combustion processes with large quantities of oxygen-bearing air. Exhaust systems push the products of this combustion outside the structure or extract grease and heat from commercial cooking appliances and industrial ovens.

The fan's ability to move large quantities of air makes it the base component of the rapidly expanding air pollution control industry. Starting with the plant, the device has been harnessed to help contain and remove pollutants like dust and metal particles, carbon monoxide, nitrous...

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