2022 NAICS national industry in sector 31-33 Manufacturing
333413 Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
NAICS 333413 is the US industry code for industrial and commercial fan and blower and air purification equipment manufacturing. This U.S.
- Code
- 333413 (2022 NAICS)
- Title
- Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
- Part of
- Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing
- SBA small business limit
- Up to 500 employees
- Closest UK SIC
- 28110, 28120, 28131, 28132 and 2 more (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in (1) 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, and/or (2) manufacturing attic fans and industrial and commercial fans and blowers, such as commercial exhaust fans and commercial ventilating fans.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Manufacturing air-conditioning equipment (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 Industry 336390, Other Motor Vehicle Parts Manufacturing.
- Manufacturing household-type fans (except attic) and portable air purification equipment are classified in Industry 335210, Small Electrical Appliance Manufacturing.
Activities listed under 333413
The Census index assigns these 14 activities to this code. If your business matches one, this is your code.
- Air purification equipment, stationary, manufacturing
- Air scrubbing systems manufacturing
- Air washers (i.e., air scrubbers) manufacturing
- Aircurtains manufacturing
- Attic fans manufacturing
- Blower filter units manufacturing
- Dust and fume collecting equipment manufacturing
- Electrostatic precipitation equipment manufacturing
- Exhaust fans, industrial and commercial-type, manufacturing
- Fans, industrial and commercial-type, manufacturing
- Filters, air-conditioner, manufacturing
- Filters, furnace, manufacturing
- Furnace filters manufacturing
- Ventilating fans, industrial and commercial-type, manufacturing
SBA size standard for 333413
To count as a small business for SBA loans and federal contracts under NAICS 333413, your business (including affiliates) must not exceed 500 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2819), so treat them as a starting point and check the definition.
- 28110Manufacture of engines and turbines, except aircraft, vehicle and cycle enginesUK SIC
- 28120Manufacture of fluid power equipmentUK SIC
- 28131Manufacture of pumpsUK SIC
- 28132Manufacture of compressorsUK SIC
- 28140Manufacture of taps and valvesUK SIC
- 28150Manufacture of bearings, gears, gearing and driving elementsUK SIC
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.