Activated carbon filter: This is a filter that serves to clean the air by capturing the odors on a porous surface (it absorbs the grease, the vapor and the odors), so that it filters the dirty air and returns it to the kitchen already renewed, it has a limited lifespan and is easy to dispose of.This is the anti-grease filter, which is incorporated as standard in all the hoods. Metallic filter: Made of aluminium mesh or it can also be made of stainless steel.stainless steel filter mesh filter activated carbon filter electrostatic filter Do all cooker hoods need filters?Īll the hoods need a filter depending on their connection, the hoods need filters of different types: These injectors need a minimum duct section of 8 meters to effectively perform the oxidation of odor particles, a point, the duct must be stainless steel, as the galvanized steel is corroded by ozone in a very short time. Ozone filters: They are used in combination with electrostatic purifiers for the total elimination of odors, although really are more than filters are ozone injectors.It is usually equipped with a triple filter Mesh (filters coarse particles), Electrostatic (fine particles) and activated carbon (odors), in combination with a hood equipped if possible with mesh filters allows to make installations of hoods without the need for duct to the roof. Their mission is to eliminate fumes and odors. Electrostatic Purification Filters: Unlike the previous ones that are inserted in the hood itself, these filters are installed in the ductwork, if possible at more than 26 feet from the hood or heat source so that the air that passes through them is as cold as possible.These filters cannot be cleaned or regenerated and have to be changed once they are no longer effective. There are two qualities: the “blanket” filter, which is more cost-effective and less efficient, and the “granules or grain” filter, which is made up of small balls of active carbon inside a mesh that acts as a support. It is important to combine them with a mesh filter on the outside that eliminates the oil as much as possible, since the oil saturates the filter and makes it inactive.
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