One of the most important elements of any commercial kitchen is the ventilation system. Ventilation systems are designed for both safety and for the functionality of your building. If it were not for the vent hood most of your establishment would be covered in air-born grease vapors. Our commercial cooking equipment is specifically made for use under a vent hood in a commercial establishment. Never use this type of equipment in a ventilated area or in a residential setting as you run the risk of not only voiding all warranties for your equipment, but also any building insurance you have. In a vent hood system you have 3 main components: the exhaust fan, the return air fan (also known as 'makeup-air fan') and the vent hood itself. Click here and let's look briefly at how these components make up a complete vent hood package.