2002 NAICS Definitions

333411 Air Purification Equipment Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing stationary air purification equipment, such as industrial dust and fume collection equipment, electrostatic precipitation equipment, warm air furnace filters, air washers, and other dust collection equipment.

Cross-References. Establishments primarily engaged in--

• Manufacturing air-conditioning units (except motor vehicle)--are classified in U.S. Industry 333415, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing;
• Manufacturing motor vehicle air-conditioning systems and compressors--are classified in U.S. Industry 336391, Motor Vehicle Air-Conditioning Manufacturing;
• Manufacturing household-type fans (except attic) and portable air purification equipment--are classified in U.S. Industry 335211, Electric Housewares and Household Fan Manufacturing; and
• Manufacturing industrial and commercial blowers, industrial and commercial exhaust and ventilating fans, and attic fans--are classified in U.S. Industry 333412, Industrial and Commercial Fan and Blower Manufacturing.

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No change 1997 to 2002

2002 NAICS to 1987 SIC

1997 Economic Census

Bridge Between 1997 NAICS and SIC

2002 NAICS	1997 NAICS	1987 SIC	Corresponding Index Entries
333411	333411	3564	Air purification equipment, stationary, manufacturing
333411	333411	3564	Air scrubbing systems manufacturing
333411	333411	3564	Air washers (i.e., air scrubbers) manufacturing
333411	333411	3564	Dust and fume collecting equipment manufacturing
333411	333411	3564	Electrostatic precipitation equipment manufacturing
333411	333411	3564	Filters, air-conditioner, manufacturing
333411	333411	3564	Filters, furnace, manufacturing
333411	333411	3564	Furnace filters manufacturing

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