How Are Commercial Kitchen Exhaust Filtration Systems Configured?

Restaurants, diners, coffee-shops and other establishments that cook food for customers all have kitchens that feature commercial kitchen exhaust filtration systems. But which one is the best one for your restaurant? There are two basic types of commercial cooking exhaust system configurations to consider.

Elements of a Commercial Cooking Exhaust Filtration System

There are five basic elements that make up a commercial cooking exhaust filtration system. It is important to know what they are and how they work within the system.

These are covered in detail in the blog post 5 Components of a Commercial Kitchen Exhaust Filtration System.

Rooftop (End-of-Duct) Commercial Cooking Exhaust Filtration System Configuration

Any cooking tasks involving multiple stoves, or perform heavy duty cooking tasks such as gas-fired charbroiling, or use solid fuel for cooking, require a rooftop or end-of-duct configuration. This is because the filtration equipment that will need to be installed will have to be installed on the roof because of the size and weight that will be necessary to properly filter the kitchen exhaust.
End-of-duct commercial kitchen exhaust filtration system diagram

The cooking exhaust is sucked up into the ductwork by the hood, first passing through the grease filter, the ductwork transports the cooking exhaust up to the roof to the filtration equipment. There the exhaust flows into a series of ESP cells that collect the particulates from the grease and smoke where they are deposited on collector plates which then can be periodically cleaned. Some air filtration units include an odor control filter unit to help eliminate any unpleasant odors resulting from the cooking process.

In Duct Commercial Cooking Exhaust Filtration System Configuration

In duct configurations are typically used for restaurants that have smaller kitchens, or only perform light or medium duty cooking tasks. This configuration is one that is installed as part of (or in the middle of) the ductwork. These are usually installed above a false ceiling in the kitchen and the ductwork pushes the exhaust into the filtration equipment (air cleaner), where it is processed and then blown out from the building via a horizontal pipe.

In-duct commercial kitchen exhaust filtration system diagram

Matrix Systems Supplies Smog-Hog Commercial Cooking Exhaust Filtration Systems

At Matrix Systems, we supply Smog-Hog commercial cooking exhaust filtration systems to fit any configuration in any building. Give us a call at either (510) 822-5167 in the Bay Area or (530) 273-5474 in the Sacramento Valley and Northern Nevada area, complete our online contact form, or email us at We can help you select the Smog-Hog commercial kitchen exhaust filtration system that perfectly meets your restaurant’s needs.