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In addition to the type, you should also decide on the strength you need, which are low-powerful (200-250 cubic meters. MCH) — respectively, the more powerful the hood, the more air it will process at an hour. However, remember that the higher the extract of the hood, the more noise it will issue. It should be noted that most modern hoods are currently equipped with a noise -absorbing block, which minimizes the sound, but the cost of such hoods, respectively, will be higher.