NFPA 96 Kitchen Exhaust System Cleaning Requirements
Hood Cleaning Service & NFPA 96 Exhaust Cleaning for Georgia, Alabama, South Carolina, North Carolina & Tennessee
Commercial Kitchen Ventilation & Fire Safety Compliance Guide
NFPA 96 (Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations) establishes the minimum fire safety requirements for commercial kitchen exhaust systems. Proper cleaning and documentation help prevent grease‑related fires, ensure system performance, and maintain compliance with local fire codes and the Authority Having Jurisdiction (AHJ).
What NFPA 96 Requires for Kitchen Exhaust Cleaning
1. Full System Cleaning Scope
NFPA 96 mandates that all grease exhaust system components be cleaned during service, including:
- Interior surfaces of cooking hoods
- Grease extractors and filters
- Entire exhaust ductwork
- Exhaust fans (blades, housing, and grease collection areas)
NFPA Requirement: All surfaces must be cleaned to bare metal with no grease, oil, or combustible residue remaining. (NFPA 96 Chapter 11)
2. Cleaning Standards
To meet NFPA 96 fire‑safety guidelines:
- No visible grease may remain on any component
- No combustible residue is allowed
- All accessible areas must be thoroughly cleaned
- If areas are inaccessible:
- The limitation must be documented
- AHJ may require installation of additional access panels
3. Access Requirements
A compliant exhaust system must include properly installed access panels that allow technicians to clean and inspect every part of the system.
Access panels must be:
- NFPA 96 compliant
- Grease‑tight and properly sealed
- Positioned for complete system access
4. Protecting the Kitchen During Cleaning
A professional service provider must take steps to protect the kitchen and surrounding areas during cleaning, including:
- Covering appliances and equipment
- Preventing contamination of:
- Food‑contact surfaces
- Electrical components
- Walls, ceilings, and other finishes
The kitchen must be left clean and in its original condition, aside from removed grease.
5. Prohibited Practices
NFPA 96 strictly prohibits:
- Applying non‑approved coatings or chemicals to hide grease
- Leaving grease residue for cosmetic appearance
- Using combustible powders or treatments inside the exhaust system
6. Exhaust Fan Service
All exhaust fans must be cleaned to bare metal and restored to proper operating condition.
This includes:
- Blades
- Fan housing
- Grease collection points
Any safety issues or equipment deficiencies must be documented.
7. Post‑Cleaning Requirements
After cleaning, technicians must ensure:
- All components are reassembled correctly
- Access panels are securely closed
- Exhaust fans are fully operational
- System is ready for AHJ inspection
8. Documentation & Compliance Labels
Upon completion of service, NFPA 96 requires a visible label or certificate to be affixed to the hood system indicating:
- Servicing company name
- Date of cleaning
- Areas cleaned
A written report must also be provided, detailing:
- Work performed
- System areas cleaned
- Any deficiencies or inaccessible areas
9. Qualified Personnel Only
Kitchen exhaust cleaning must be performed by technicians trained and knowledgeable in NFPA 96 requirements and equipped with the proper tools, cleaning methods, and safety procedures.
10. Compliance & AHJ Requirements
All cleaning work must comply with:
- NFPA 96 standards
- Local fire codes
- Requirements set by the Authority Having Jurisdiction (AHJ)
Non‑compliance may result in:
- Failed fire inspections
- Increased risk of grease‑related fires
- Mandatory re-cleaning by the AHJ
Get Certified NFPA 96 Hood Cleaning—Protect Your Kitchen and Stay Code Compliant
NFPA 96 requires commercial kitchen exhaust systems to be cleaned to bare metal, fully documented, reassembled correctly, and maintained by qualified professionals. Following these standards reduces fire risk and ensures compliance with local fire codes and the AHJ.