Industry: 3564—Industrial and Commercial Fans and Blowers and Air Purification Equipment
Establishments primarily engaged in manufacturing industrial and commercial blowers, industrial and commercial exhaust and ventilating fans, and attic fans, or in manufacturing dust collection and other air purification equipment for heating, ventilating and air-conditioning systems or for industrial gas cleaning systems. Establishments primarily engaged in manufacturing air-conditioning units are classified in Industry 3585; those manufacturing free air-circulating fans for use on desks, pedestals, or wall brackets as well as household window-type fans and roll-abouts, and kitchen and household ventilating and exhaust electric fans, except attic, are classified in Industry 3634.

Air cleaning systemsFans, except household
Air purification and dust collection equipmentFilters, air: for furnaces and air-conditioning equipment
Aircurtains (blower)Furnace blowers (blower filter units)
Attic fansPrecipitation, electrostatic
Blowers, commercial and industrialTurbo-blowers, industrial
Dust and fume collecting equipment, industrialVentilating, blowing, and exhaust fans: except household and kitchen
Exhaust fans, except household and kitchen
Codes Titles Number of US Businesses
3564Blowers and Fans1,062
356400Blowers and fans200
35640000Blowers and fans200
356401Purification and dust collection equipment676
35640100Purification and dust collection equipment55
35640101Air cleaning systems123
35640102Air purification equipment214
35640103Blower filter units (furnace blowers)5
35640104Dust or fume collecting equipment, industrial40
35640105Filters, air: furnaces, air conditioning equipment, etc.235
35640106Precipitators, electrostatic4
356402Blowers and fans186
35640200Blowers and fans54
35640201Aircurtains (blower)5
35640202Blowing fans: industrial or commercial41
35640203Exhaust fans: industrial or commercial22
35640204Turbo-blowers, industrial12
35640205Ventilating fans: industrial or commercial52