The range hood has now become one of the main products of China's household appliances, and has formed a huge complete industrial chain from raw material supply, spare parts matching, complete machine manufacturing, sales and after-sales service, whether it is practitioners, enterprises involved and consumption. The market has already had a considerable scale. The current range can be divided into European, Chinese and near-suction (side suction). Among them, the Chinese style can be divided into thin and simple. In the simple type, it is divided into deep and sub-deep types. The number of motors and wind wheels can be divided into two types: single and single (ie, double and single). It can be divided by suction: top suction and side suction (including oblique suction). From the stoppage and draining method, it can be divided into double oil road and three oil road (air chamber drain oil, protective cover drain oil and air transport drain oil). The structure of the smoke collecting chamber is divided into a single layer (three oil road), a double inner inner type (double oil circuit), a near suction type, also called a side suction type and the like. European hood features: The effect of fume extraction: the principle is cyclic rising type, single turbine, small collection bin and no smoke collection bin, multi-layer dense mesh plate superposition, the effect of oil fume is worse than that of the medium machine, but the separation of soot, small noise, energy saving and environmental protection is now The main trend of the hood; Appearance: The appearance is beautiful and fashionable, and there are many fabric choices. The switch can be selected by mechanical switch and touch switch style, which increases the highlights of the kitchen and the style is relatively new; Installation requirements: From the installation position, it is basically a "ceiling type" range hood, the size is generally 800MM - 900MM, open kitchen or larger kitchen, can choose, can match most cabinets, Basically belong to the "ceiling type" range hood,; Price problem: the complexity of the production process and the increase in material costs, so the price is higher than the Chinese hood. Disadvantages: The smoke removal effect of the European-style range hood is actually not as good as that of the Chinese style. The smoke rate is not high and the power is not small. Side suction range hood features: The effect of fume extraction: large oil absorption area, close to the oil smoke, more aerodynamic and fluid dynamic design, the first use the soot separation board to separate the soot and then discharge the clean air principle, discharge clean air does not pollute the environment, no oil does not drop When you meet, the effect of smoking fumes is good, the rate of smoke absorption is above 99%, the motor does not have a long service life, and the cleaning is convenient. It is especially suitable for the fire in the Chinese kitchen. Installation requirements: side suction range hood completely breaks through the design method of traditional ceiling-type hood, through the wall-mounted installation of the side inlet and the unique core technology, the effect of the fume suction is better than the traditional ceiling-type hood. One step, when installing, there are certain requirements for the cabinet. It is hidden in the cabinet and integrated with the cabinet. It does not occupy space. The fumes do not pass through the breathing zone to ensure the health of the housewife. Price problem: the complexity of the production process and the increase of material cost, so the price is higher than the Chinese hood and the European hood; Disadvantages: The noise is generally larger. When selecting a hood, the key technical indicators are: wind pressure, air volume and noise, which are the major indicators that must be paid attention to when purchasing. Due to technical limitations, the wind pressure is mostly between 230 and 280 Pa, and the air volume is generally between 12 and 15 cubic meters. The noise should be between 52DB and 65DB. If the smoke is discharged to the public chimney, the wind It is better to press a little bigger. Chinese hood features: Range smoke effect: It belongs to the deep suction machine. It is generally a high-power motor. 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