2022 NAICS industry group in sector 31-33 Manufacturing

3334 Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing

NAICS 3334 is the US industry code for ventilation, heating, air-conditioning, and commercial refrigeration equipment manufacturing. NULL

Official definition

NULL

Source: US Census Bureau, 2022 NAICS descriptions.

Codes in 3334

Inside 33341

Data last changed November 14, 2026. How this page is built.