It is hard to be in the kitchen where the coal extract is not installed, because during cooking both smoke and fumes are emitted, containing, in addition to water, a wide variety of fragrant and not very much substances, as well as microscopic particles of fat.
In most cases, the kitchen premises of apartment buildings have their own system of ventilation ducts built into the walls, which are not always successfully coping with their task. The efficiency of removal of harmful gases outside the apartment in this case depends not only on the degree of contamination of the air duct, but also on weather conditions. With a certain direction of the wind, in the rain or in a blizzard, the thrust may also become reverse.
What happens when for some reason the hood is turned off? Air circulation will cease, leading to accumulation of harmful substances in the room.
Such a ventilation system, such as an exhaust hood with a carbon filter, allows, without using a ventilation channel, to remove all odors and smoke that occurs during cooking. At the same time, the purified air is not emitted outside the apartment, but returns to it, without increasing the load on air conditioners in summer or on heating devices in winter.
Today coal extracts are produced for the kitchen of various designs, and the buyer only needs to decide exactly what he needs.
Extracts without an air duct are always completed with two types of filters: grease and coal.
When choosing a hood equipped with a carbon filter, it is necessary, first of all, to know its specific type, since these units can be: