Choosing the right filter for a commercial range hood

The baffle filter (also called a baffle-type grease filter) remains the standard in professional kitchens: air passes through a series of stainless steel baffles that trap grease and let it run down into the hood's collection tray. This is the filter fitted under almost every hood in restaurants, snack bars and catering kitchens. Our baffle filter L500xH400xP25mm covers everyday use, while the high-performance filter L500xH400xP25mm targets stations that generate the most grease: fryers, grills, planchas. For larger hoods, the baffle filter L500xH500xP25 and the half filter L250xH400xP25 allow you to build up the right filtering surface without leaving any unfiltered area.

The baffle filter only deals with grease, not odours. For a hood without ducting to the outside (recirculating use only) or alongside a standard extraction system, the G4 pre-filter fits into a carbon filter box and protects the activated carbon media by stopping larger particles before they saturate it. We offer a small G4 filter and a large G4 filter, each supplied with its own frame. In a kitchen with a heavy grease load (fryer, plancha, wok), a G4 pre-filter alone will not absorb grease effectively over time: it must always come in addition to efficient baffle filtration, not in place of it.

The G3 filter for pre-filtration box and the G3 filter box (box only) are installed upstream of a circular ductwork network, for both supply and extract air, to protect the rest of the installation from larger dust particles. The condensation filter for dishwashing areas meets a different need: limiting water vapour and condensation typical of wash-up rooms, rather than cooking grease.

Blanking plate: when to replace a filter with a solid plate

When a filter position is no longer in use (cooking station switched off, unused section of the hood), the blanking plate simply closes off the opening to keep the plenum airtight, without allowing unfiltered air through. We offer a stainless steel blanking plate L500xH400xP25mm and a domed galvanised blanking plate 500x500, to be fitted to match the dimensions of your current filter.

Comparison table of the range

Points to check before ordering

• Measure the length, height and thickness of your hood's filter housing precisely: a filter that's too small won't stay in place, while one that's too large will let unfiltered air through at the edges.
• For heavy-duty cooking stations (fryer, grill, plancha), go for the high-performance filter rather than the standard filter, which clogs up more quickly under a heavy grease load.
• A G4 pre-filter protects a carbon filter box but never replaces a baffle filter on a hood with a heavy grease load: the two filtration stages serve different purposes.
• Before fitting a blanking plate, check that the opening to be closed matches the exact dimensions of your old filter (500x400 or 500x500 depending on the model).
• Regular maintenance remains essential: a clogged filter reduces actual extraction performance and increases the risk of grease build-up in the ductwork.

Complete your order with

These filters are part of a complete ventilation installation: browse the full range of ventilation accessories (ducting, fittings, outlets) to complete your extraction system.