Another important question, which depends on the design drawing – is its location: in the corner against the wall or on the "island." In Depending on this, and the type of drawing is angular, island or wall. EXACT SIZE One of the main parameters that must be considered when selecting exhaust is its width. Hoods should not be already cooking surface, otherwise not all the evaporation from the surface will fall into the hood, some will continue to spread through the rooms. Too broad range hood, much bigger area of cooking surface, also useless. No, of course, pulling the air, it will be better, but the noise – is stronger. NOISE But the next most important parameter – this is noise. This parameter by itself can do little to characterize the hood, it is always necessary to bring (and perceive) only in conjunction with the corresponding value of the noise performance. If you want to determine which model is less noisy, you should compare the values of sound pressure at equal performance.
There is another approach. You can compare which of the extracts will be more productive at the same level of noise. For information: whisper creates noise 25 … 30 dB, the compressor refrigerator – 38 … 43 dB, the conversation – 50 … 60 dB, the allowable for a permanent job is considered noise v70dB. Productivity No matter how important the appearance of drawing, and whatever requirements are imposed on it "noise" performance is one of the main parameters which determine how well and how quickly air can be cleaned in the kitchen.