333413

Analysis

NAICS 333413 is the 2022 national industry for industrial and commercial fan and blower and air purification equipment manufacturing, part of 33341 (Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing). Census lists 14 example activities under it in the official index.

County Business Patterns counts 479 US establishments in this code in 2023, employing 29,098 people at an average annual payroll of $60,697 per employee (33rd percentile of national industries). 20% of the establishments have fewer than five employees, which points to larger operations.

Its index entries, the activities Census uses to assign businesses to this code, include air purification equipment, stationary, manufacturing, air scrubbing systems manufacturing, air washers (i.e., air scrubbers) manufacturing and aircurtains manufacturing, among 14 in all.

Its goods appear in 10 statistical lines of the US tariff schedule, mostly under headings 8414 (air or vacuum pumps, air or other gas compressors and fans…) and 8421 (centrifuges, including centrifugal dryers; filtering or…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.

Census lists 3 related activities that belong elsewhere, most often in 333415, 336390 and 335210. Businesses that do several things are classified by their primary activity, the one that generates the most value, so check those boundaries before settling on this code.

For example, manufacturing air-conditioning equipment (except motor vehicle) are classified in 333415 (Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing) instead.