Range hoods play an important role as kitchen health protectors and are an integral part of kitchen decor. The range hood is beautiful and generous in appearance, has good smoke exhausting effect, can be matched with different styles of kitchen furniture decoration, and has moderate price. It has become a must-have kitchen and bathroom appliance for families.
However, when consumers buy a range hood, if they do not master some basic methods and points, it is easy to step into the wrong side of the purchase. Here, we analyze the five data indicators of the range hood, and hope to help you buy a satisfactory and suitable product.
Air volume
Refers to the amount of exhaust air per unit time of the range hood when the static pressure is zero. The air volume is a very important indicator. Under normal circumstances, the larger the air volume value, the stronger the ability of the range hood to suck and drain the oil smoke. Therefore, when selecting a range hood, when other indicators are good, try to select a range hood with a larger air volume. According to the state regulations, the airflow indicator value of the range hood must be greater than or equal to 7 cubic meters per minute. According to the volume of your room, multiply by 8, 10, 12 times to get the value of the air volume.
Wind pressure
Wind pressure is also an important indicator of the performance of range hoods. The greater the wind pressure value, the stronger the anti-winding ability of the range hood. If the exhaust pipe is long or connected to the public flue, the exhaust pressure is greatly lost, so that a larger wind pressure is required to ensure that the flue gas is discharged. Therefore, when other indicators are good, the greater the wind pressure value, the better. The state stipulates that the indicator value is greater than or equal to 80 Pa.
noise
It refers to the range hood operating at the rated voltage and rated frequency at the highest speed, measured according to the prescribed method, the state stipulates that the index value is not more than 74 decibels.
Odor reduction
The ratio of the difference between the maximum odor concentration in the laboratory and the maximum odor concentration in the working condition of the range hood to the maximum odor concentration in the laboratory under the specified test conditions. The larger the value, the better, which means that the smoke is better. In the kitchen, cooking oil and food undergo a series of complex changes under high temperature conditions, which produce a large amount of thermal oxidative decomposition products, some of which are emitted into the air in the form of smoke to form kitchen fumes.
The composition of oil fume is complex: there are more than 220 kinds of aldehydes, ketones, fatty acids, alcohols, aromatic compounds, fats, lactones, heterocyclic compounds, etc., most of which are toxic. Therefore, in addition to paying attention to the suction force when purchasing the range hood, the degree of odor reduction is also a very important reference indicator.
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