Commercial Kitchen Filter Application Guides

Cleaning frequency depends on your kitchen type and volume:

• Fast food / high-volume frying: Weekly cleaning
• Full-service restaurants: Weekly to bi-weekly
• BBQ / smokehouses: Twice weekly (due to heavy grease)
• Pizza / bakeries: Bi-weekly to monthly

Yes, all PrometheanFoam metal foam kitchen hood filters are NFPA 96 compliant. Our 304 stainless steel frames withstand temperatures up to 1650°F, far exceeding the 600°F requirement. The metal foam structure acts as a flame arrestor, reducing fire propagation risk by approximately 85% compared to traditional baffle filters. We provide complete compliance documentation with every order.

Metal foam commercial kitchen hood filters have a typical lifespan of 3-5 years with regular cleaning and proper maintenance. The 304 stainless steel frame carries a 5-year warranty against manufacturing defects. Unlike disposable filters that are replaced weekly or traditional baffle filters replaced every 2-3 years, metal foam filters are never discarded—only washed and reused. This results in an annual cost of approximately $37 per filter versus $156 for disposable alternatives.

Yes, pressure washing is the recommended method for cleaning metal foam kitchen hood filters. Use a pressure washer at room temperature (not hot water) for approximately 5 minutes, directing water from the clean-air side outward. This method removes 95%+ of grease buildup. Alternatively, you can run the filter in a commercial dishwasher on a heavy-duty cycle at 160-180°F with a commercial degreaser for 10 minutes. Both methods fully restore 100% filtration efficiency.

We offer three standard sizes:

• Large: 19.7" x 27.6" (500x700mm) - $199
• Medium: 19.7" x 23.6" (500x600mm) - $189
• Small: 19.7" x 19.7" (500x500mm) - $179

1. Measure the width and height of your existing filter or hood opening
2. Check the thickness (typically 0.75" or 1")
3. If none of our standard sizes match, we offer custom sizing