Stop Kitchen Fires
Before They Start:
98% Grease Filtration
with Foam Metal
The only kitchen hood filter with 98% grease filtration and a 10–20 year lifespan. Originally proven in 58% of residential hoods worldwide. Now protecting commercial restaurants from the #1 cause of kitchen fires — grease duct accumulation.
The Hidden Fire Danger in Every Commercial Kitchen
Grease-laden exhaust ducts are the most dangerous fire hazard in commercial kitchens — and most restaurant operators don't know how much grease their current filters are missing. The cycle is predictable and deadly:
- 55–94% filtration efficiency
- 6–45% of grease enters ductwork
- Grease accumulates over weeks and months
- Single flame-up ignites duct grease at 1,000°F+
- Fire spreads through ducts to walls and ceilings
- Restaurant destroyed. Business closed.
- 98% filtration efficiency — tested and proven
- Only 2% of grease enters ductwork
- 40% less grease accumulation in ducts
- Near-zero grease buildup prevents ignition
- A1 non-combustible — won't contribute to fire
- Restaurant protected. Business survives.
NFPA Data & Regulatory Authority
Why 98% vs 94% Is a 67% Reduction in Fire Risk
The math that most restaurant owners don't know: the 4% efficiency gap between premium baffle filters (94%) and foam metal (98%) represents a 67% reduction in grease entering ductwork. From 6% to 2% — that is not a small difference. Over a 1,000-cook-hour period, this means approximately 40% less grease in ductwork, dramatically lowering fire risk and cleaning requirements.
| Filter Type | Efficiency | Grease in Ducts | Fire Risk | Lifespan | NFPA Status |
|---|---|---|---|---|---|
| Mesh Filters | 70–80% | 20–30% Prohibited | Very High | 6–12 months | ❌ NFPA Prohibited |
| Standard Baffle | 85–94% | 6–15% | Moderate | 2–3 years | ✓ Compliant |
| Premium Baffle | 92–94% | 6–8% | Good | 2–3 years | ✓ Compliant |
| Foam Metal (Ours) | 98% Best | 2% only 67% Less | Excellent | 10–20 years | ✓✓✓ Superior |
A major restaurant chain with 200+ locations switched to foam metal filters and reduced grease duct fires from 12 incidents per year to ZERO. The investment payback was under 8 months when insurance premium reductions (10–15% average) were factored in alongside cleaning cost savings.
Technical Specifications — 18/20 PPI Foam Metal Filter
| Specification | Nickel-Iron (Ni-Fe) Foam | Pure Nickel Foam |
|---|---|---|
| Filtration Efficiency | 98% | 98% |
| PPI Structure | 18/20 PPI | 18/20 PPI |
| Filter Lifespan | 10 years minimum | 20+ years |
| Fire Rating | A1 Non-Combustible | A1 Non-Combustible |
| Compliance | NFPA 96 + UL 1046 | NFPA 96 + UL 1046 |
| Cleaning Method | Alkaline soak (on-site) | Alkaline soak (on-site) |
| Rust Resistance | Excellent | Superior (pure Ni) |
| High-Temp Performance | Up to 800°C | Up to 1000°C |
| Best For | Standard commercial kitchens | High-volume, high-temp (wok, solid fuel) |
| Initial Cost | $200–$300/filter | $300–$400/filter |
| 10-Year Total Cost | $2,200–$3,000 | $2,500–$3,500 |
10-Year Total Cost of Ownership
| Filter Type | Filter Cost (10yr) | Cleaning Costs (10yr) | Total 10-Year Cost |
|---|---|---|---|
| Mesh (replace 10–20×) | $300–$1,200 | $8,000–$12,000 | $8,300–$13,200 |
| Baffle (replace 4–5×) | $320–$750 | $6,000–$10,000 | $6,320–$10,750 |
| Foam Metal (once) | $200–$400 | $2,000–$3,000 | $2,200–$3,400 Save $4K–$10K |
Reduced fire risk from foam metal filtration can lower commercial property insurance premiums by 10–15%, adding $500–$2,000 in additional savings over 10 years per filter installation location. Many insurers specifically recognize UL 1046 listed grease removal devices as qualifying for premium reduction.
5-Step Installation for NFPA 96 Compliance
Assess current filter setup: measure existing filter slot dimensions, identify hood type (Type I for grease-producing equipment, Type II for non-grease), document current duct cleaning frequency. Per NFPA 96 Section 6.2.1.1: maintain minimum 18-inch clearance between cooking surface and filter. Request PrometheanFoam custom sizing at (307) 533-4550 — standard sizes fit most commercial hoods, custom dimensions available.
Remove existing baffle or mesh filters. Clean ducts to bare metal per NFPA 96 Section 11.6.2 — this establishes a clean baseline for measuring foam metal's performance benefit. Document pre-installation duct grease condition with photos for insurance records. Schedule this cleaning with your NFPA 96-certified hood cleaning service.
Per NFPA 96 Section 6.2.1: install at minimum 45° angle from horizontal so grease drains by gravity into collection trough. Ensure filter sits snugly — no gaps (NFPA 96 Section 6.2.3.4: all exhaust air must pass through filter). Verify filter bottom edge is minimum 2 feet from cooking surface. Foam metal's rigid 18/20 PPI structure meets NFPA 96 Section 6.2.3.3 rigid construction requirement.
Check grease collection trough weekly for first 30 days to verify 98% capture. Expect similar or greater grease in collection trough — this confirms foam metal is now capturing what previously passed into ducts. Document weekly grease volumes for insurance compliance records. Contact (307) 533-4550 with any installation questions.
Clean schedule: semi-annual to annual (vs monthly for traditional filters). Method: remove → soak in alkaline cleaner (sodium carbonate) 30–60 min → rinse with hot water → air dry → reinstall. Maintain NFPA 96 required cleaning log. Notify insurance provider of foam metal installation for premium review. Schedule annual professional duct inspection to document 40% grease reduction.
US Restaurant Markets — Commercial Kitchen Fire Safety
Strictest NFPA 96 enforcement in the US via FDNY. NYC restaurants face annual hood inspections. 72% of NYC restaurant managers report hoods "often overloaded with grease" (2026 survey). Highest fire insurance premiums in the US — foam metal ROI accelerated.
Largest restaurant market in the US by count. LA Fire Department UL 1046 compliance inspections. High-volume Korean BBQ, Asian fusion, Mexican cuisine kitchens with heavy grease loads drive demand for 98% efficiency filters.
Chicago Fire Department annual kitchen exhaust inspections. Deep dish pizza, steakhouse, and hot dog stand operations with significant grease loads. Strong Midwestern restaurant chain headquarters market for multi-location foam metal installations.
Texas's largest restaurant market. High-volume BBQ, Tex-Mex, and Gulf seafood operations produce significant grease loads. Harris County Fire Marshal NFPA 96 compliance inspections. Multiple large-restaurant-chain headquarters.
DFW is one of the fastest-growing restaurant markets in the US. New restaurant construction drives demand for specification-grade foam metal filters at initial installation. Texas Restaurant Association partner market.
Highest restaurant density per capita in the US. 24/7 casino kitchen operations mean continuous grease loading — traditional filters require monthly replacement. Foam metal's 10–20 year lifespan provides exceptional value for continuous operation kitchens.
Miami-Dade County restaurant market with significant Latin American, Caribbean, and seafood cooking operations. High grease loads from Cuban, Haitian, and Jamaican cuisine demand maximum filtration efficiency. Tourism-driven high-volume operations.
Atlanta is the Southeast US food service headquarters hub — Chick-fil-A, Waffle House, and Arby's corporate HQs. Multi-unit restaurant chain operations drive institutional procurement of foam metal filters. Georgia State Fire Marshal NFPA 96 compliance.