Includes
Laminar and Nonlaminar Flow Enclosures; Dust Controlled Facilities; Air Showers.

Possible NAICS Codes
333318 – Other Commercial and Service Industry Machinery Manufacturing
333413 – Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
562910 – Remediation Services
326122 – Plastics Pipe and Pipe Fitting Manufacturing
561720 – Janitorial Services
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
444130 – Hardware Stores
337214 – Office Furniture (except Wood) Manufacturing
334516 – Analytical Laboratory Instrument Manufacturing
333999 – All Other Miscellaneous General Purpose Machinery Manufacturing