NIGP 03131: Duct Cleaning Equipment, Air

NIGP 03131 Duct Cleaning Equipment, Air (Item) covers specialized equipment and tools for cleaning, inspecting, and maintaining air duct systems in state and local facilities. Recent state and local solicitations frame the code around as-needed air duct cleaning services—including high-velocity equipment, containment systems, HEPA filtration, mechanical agitation tools, and related diagnostic and restoration apparatus—procured by county departments, airport authorities, utilities, and special districts to comply with NADCA standards and improve indoor air quality across operational facilities.

State and local buyers issuing under this code range across county public safety and facilities departments, airport authorities, county utilities, and facilities commissions. Recent activity reflects a mix of stand-alone duct cleaning RFPs and ITBs issued by single jurisdictions—Montgomery County Department of Public Safety (February 2026, sealed bid for HVAC duct cleaning at the Public Safety Training Campus), the Greater Orlando Aviation Authority (February 2026, IFB 26-104-IFB for air duct cleaning and repair services at two airport facilities), and San Mateo County Department of Public Works (May 2026, RFP 2026RFP00238 for dryer duct maintenance and air duct cleaning across shelters and correctional facilities)—alongside cooperative purchasing vehicles. The Texas Facilities Commission also procured air duct cleaning as part of a broader remediation and restoration RFP (RFP 0007615, May 2026) covering multiple state-owned facilities statewide. Geographic spread centers on Texas, Florida, California, and Maryland, with activity appearing episodic rather than concentrated in any single state. Bidders must typically hold NADCA Air Systems Cleaning Specialist Certification, meet commercial insurance thresholds ($1 million general liability common), demonstrate three to five years of documented similar-project experience, and comply with prevailing wage and OSHA standards where required. Contract terms cluster around one to five years with as-needed or task-order pricing models, and award values range from $375,000 (San Mateo County five-year aggregate not-to-exceed) upward depending on facility scope and term.