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Baffle filters vs Mesh filters

Commercial kitchen

Both of these filters are designed to remove grease from the air intake going in through the air filtration system. The air filtration system itself is eliminating heat, smoke and smells from above the stoves. This provides a better working environment for workers in the kitchens. However, recent regulations from the National Fire Protection Association (NFPA), push commercial kitchens to implement baffle filters in their facilities, over their mesh counterparts, because of their better performance of removing grease from the air. Some companies go even a step further, adding a mesh filter behind the baffle filter to provide even greater filtration. Although this requires a more powerful fan to provide the needed airflow, it does prove effective and limits the costs of expensive ductwork cleaning. On top of all that, it prolongs the periods between the cleaning of the filters themselves.

What is a Baffle Filter

Stainless steel baffle filters are getting more and more popular and preferred for use in commercial and domestic kitchens alike. A big portion of their success is their appearance. However, a baffle filter also provides better grease filtration and a lower fire risk rate, because flames from the hobs can’t pass through the baffle filter and inside the intake.

How Do Baffle Filters Works

Baffle filters are constructed by interlocking baffles with a tortuous route, through which the grease passes. The oil particles follow down the smooth surface of the filter’s vanes and collect within the canopy holding casings. This limits the chance of build-ups that will prevent the airflow.

What is a Mesh Filter

Typically a filter made out of aluminium that constructs out of multiple layers of mesh. The layers of steel or aluminium mesh are held together by a frame of aluminium. This is a lightweight construction that is largely popular in kitchen induction systems.

How Does a Mesh Filter Works

The greasy fumes generated from the cooking process are being trapped within the layers of mesh in so-called grease traps. However, if those filters are not cleaned on a regular basis, grease build-ups will form and block the airflow, leading to inefficient work of the extraction system.

Baffle Filter VS Mesh Filter

Let’s look at some Pros and Cons of both types of grease filters and see how they compare.

Baffle Filters Pros and Cons

Pros:

  • Better grease filtration;
  • Greater fire and flame resistance;
  • Aesthetic appearance;
  • Resistance to corrosion (baffle filters stainless);
  • Durable;
  • Easy to clean by soaking or dishwasher;
  • Cost-effective in long term operation.

Cons:

  • Heavier than mesh filters;
  • More expensive.

Mesh Filters Pros and Cons

Pros:

  • Cheaper solution;
  • Could be washed in a dishwasher;
  • Lighter structure.

Cons:

  • Noisier than baffle filters;
  • Reduced fire safety;
  • Not as durable against high temperatures.

In the past, Mesh Grease Filters have been used as primary filters in commercial kitchens, however current standards and guidance suggest that Stainless Steel Baffle Filters must be used as they offer a greater barrier to fire and flames. These filters should only be used as a primary filter in environments where grease production is low and there are less fire risks i.e. domestic kitchens. In commercial kitchen applications, the main reason mesh filters are still used are as secondary filters. They have a lower resistance to airflow but are very effective in removing grease from airflow through the ducts.

As always, our professional representatives are awaiting your questions. Trust them to help you figure out what kind of filter, or combination of filters and fan will best suit your specific needs. Give them a call at 01455 616444. You can go on our page for stainless steel baffle filters to see the standard sizes, but you can always order one custom made for you.