Baffle Grease Filters for Kitchen Canopies
An SS430 stainless steel baffle filter for commercial kitchen extraction canopies, also called a canopy filter or canopy baffle. UL Classified to UL 1046. 595×595×48mm and 495×495×48mm are in stock in Silverton and can be ordered online.
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A baffle grease filter is the first line of defence in any commercial kitchen exhaust system. Cooking generates grease-laden vapour: aerosol droplets of fat, oil, and moisture carried upward by the thermal plume from cooking equipment. Without an effective grease filter in the canopy hood, this aerosol enters the exhaust ductwork and accumulates as a flammable deposit. Prebur supplies SS430 stainless steel baffle grease filters sized for commercial kitchen canopy hoods across South Africa.
We supply two sizes, 595×595×48mm and 495×495×48mm, both held in stock in Silverton, Pretoria as part of the Airtech range.
How Baffle Filters Work
The baffle design directs grease-laden airstream through a series of angled baffles. Each direction change causes heavier grease droplets to impinge on the baffle surfaces, coalesce, and run off. Cleaned air continues into the exhaust duct. Unlike mesh filters, baffles are designed to drain while in use.
Emptying the canopy drip tray regularly is part of the standard canopy maintenance routine. The filters themselves are removed and washed on a schedule determined by cooking volume, typically weekly or fortnightly in a standard commercial kitchen.
Material: SS430 Stainless Steel
Grade SS430 ferritic stainless steel is the industry-standard material for commercial kitchen baffle filters. It provides good resistance to the corrosive environment of a kitchen exhaust system (grease, steam, cleaning chemicals) while remaining non-combustible. As a ferritic grade it is magnetic, which is normal for kitchen baffle filters. SS430 is cost-effective relative to SS304 and is the appropriate choice for standard canopy grease filter applications.
Wash the filters in hot water with a kitchen degreaser. Avoid abrasive scourers: surface scratching creates grease traps that speed up fouling between cleans.
Fire Safety and Compliance
Keep kitchen exhaust grease extraction clean and serviceable. Check with your fire safety authority and insurer which filter specification and cleaning routine they require. SS430 stainless steel is non-combustible.
Our baffle filters carry the UL Classification Mark (cULus, File R39729): UL Classified to UL 1046 and ULC-S649 as to flammability after exposure to grease-laden air. UL 1046 is the grease-filter standard referenced by NFPA 96, the US commercial-kitchen-ventilation code, which does not permit stand-alone mesh filters. Most South African listings do not state it.
Material Specification
| Material | Grade SS430 ferritic stainless steel |
| Finish | BA (bright annealed) |
| Frame | Integrated SS430 frame, same material as baffles |
| Handles | Two wire bail handles for removal |
| Non-combustible | Yes: does not contribute to fire load |
| Magnetic | Yes (ferritic SS, standard for kitchen applications) |
| Cleaning method | Hot water and kitchen degreaser, rinse and dry |
Standard Sizes
Two sizes are held in stock in Silverton as part of the Airtech range: 595×595×48mm and 495×495×48mm, both SS430 stainless steel. Both can be ordered online above, from a single filter up to sealed cartons of 6.
| Model | Size (WxHxD) | Net Weight | Pcs/Carton |
|---|---|---|---|
| BGF-595X595-SS430 | 595x595x48 | 3,05kg | 6 |
| BGF-495X495-SS430 | 495x495x48 | 2,24kg | 6 |
Both sizes: SS430 stainless steel, 48mm deep. These are the only two sizes we supply.
Cleaning and Maintenance
| Recommended cleaning frequency | Weekly to fortnightly (high-output kitchens may require twice weekly) |
| Washing | Hot water and kitchen degreaser, rinse and dry |
| Drip tray | Empty at the start of each shift or as needed. Do not allow to overflow. |
| Inspection | Check baffles for deformation or corrosion at each cleaning. Replace damaged filters immediately. |
| Storage | Store dry. Do not stack with grease-laden filters against other surfaces. |
Stainless steel baffle grease filters are required in any commercial kitchen where cooking generates grease-laden vapour. The canopy hood captures the thermal plume from the cooking equipment. The baffle filter sits in the hood and prevents grease from entering the exhaust ductwork. Every installation from a single-line restaurant kitchen to a large hotel banqueting operation requires compliant grease filtration.
Any commercial canopy over open-flame burners, griddle plates, fryers, or solid-top ranges requires grease filtration. Stainless steel baffles are a common specification for restaurant canopies.
High-volume hotel kitchens with multiple cooking lines and extended operating hours generate significant grease output. Baffle filters sized for the canopy and maintained on a regular cleaning schedule keep the extraction system performing.
Healthcare facility kitchens face stringent hygiene audits and fire safety inspections. Stainless steel construction is specified for ease of cleaning.
Industrial food processing facilities with overhead extraction hoods over cooking, frying, or smoking operations require grease filtration to prevent duct contamination. SS430 construction handles the heavier grease loading typical of continuous production operations.
Temporary and permanent commercial kitchen installations for contract caterers and event venues. Filter sizing matched to the canopy hood and cooking equipment load. Contact us with your hood dimensions for a recommendation.
Replacement grease filters for existing canopy hoods where the original filters have been damaged, deformed, or are no longer available from the original supplier. Provide your current filter dimensions and we will confirm the correct replacement specification.
What does a baffle grease filter do?
A baffle grease filter captures grease-laden aerosol produced during cooking before it can enter the exhaust ductwork. Grease-laden air is directed through angled baffles; the direction changes force heavier grease droplets to impinge on the baffle surfaces, coalesce, and run off. Cleaned air continues into the exhaust duct. Unlike mesh filters, baffles are designed to drain while in use.
How often should baffle grease filters be cleaned?
In a typical commercial kitchen, baffle filters should be cleaned weekly or fortnightly depending on cooking volume. High-output kitchens (such as fast food, hotel banqueting, or industrial catering) may require twice-weekly cleaning. Check with your fire safety authority and insurer what maintenance they require.
How do I clean baffle filters?
Wash them in hot water with a kitchen degreaser, then rinse and dry. Avoid abrasive scourers: scratches trap grease over time. Call Nick before using a commercial dishwasher or a caustic cleaner.
Which canopy filters fit my extraction canopy?
Two sizes: 595×595×48mm and 495×495×48mm, both SS430 stainless steel and both held in stock. We do not make other sizes. Measure the face of your existing filter (not the canopy opening) to check it matches one of the two.
Do baffle filters provide a fire safety rating?
Our SS430 baffle filters carry the UL Classification Mark (cULus, File R39729): UL Classified to UL 1046 and ULC-S649 as to flammability after exposure to grease-laden air. UL 1046 is the grease-filter standard referenced by NFPA 96 for commercial kitchen exhaust systems. The SS430 steel is non-combustible, and the baffle design is intended to interrupt the direct flame path from the cooking surface into the ductwork. Always confirm that the installed filter specification meets the requirements of your fire safety compliance authority.
How do I place an order?
The two stocked sizes, 595×595×48mm and 495×495×48mm, can be ordered online on this page in any quantity, from a single filter up to sealed cartons of 6, with nationwide delivery quoted at checkout. For larger quantities, use the contact form or call Nick Els on +27 74 159 1634.