When a new house is renovated at home, we need to buy a range hood. Faced with many brands, many types, and many styles of range hood products on the market, how should we choose the most suitable range hood? Then the following points hope to help you!
1. Safety performance: As a household appliance product, the range hood is the most important performance index. So it should pass the national CCC compulsory product certification.
2. Air volume: Generally speaking, the larger the air volume value, the more quickly and timely the kitchen can be exhausted. Under the rated voltage and rated frequency, the range hood operates at the highest speed. In a specific test device, when the static pressure value is zero, the corresponding exhaust volume is not less than 7m3 / min. Therefore, when we choose the range hood, when the other indicators are good, we should choose the one with the largest air volume value as much as possible. By the way, the air volume is not as big as the design, it is restricted by many factors. At present, the exhaust air volume on the market has reached 14m3 / min.
3. Wind pressure: The greater the wind pressure value, the stronger the range hood's ability to resist downwind. Under the rated voltage and rated frequency, the range hood is operated at the highest speed. In a specific test device, the static pressure value should not be less than 80Pa when the air volume is 7m3 / min. Wind pressure is an important technical indicator to measure the performance of the range hood. If the exhaust pipe is long or connected to the public flue, due to the great loss of exhaust pressure, a larger wind pressure is required to ensure that the smoke is discharged. Therefore, when other indicators are good, the larger the wind pressure value, the better. Similarly, wind pressure is restricted by many factors as well as wind volume.
4. Noise: Noise is also an important technical indicator to measure the performance of the range hood. It refers to the A-sound power level measured by the specified method under the rated voltage and rated frequency and running at the highest speed. The state stipulates that the index value is not greater than 74dB. For this index, of course, the lower the noise, the better.
5. Odor reduction: under the specified experimental conditions, the ratio of the difference between the maximum odor concentration in the laboratory and the maximum odor concentration under the working state of the range hood and the maximum odor concentration in the laboratory. Intuitively, the larger the index value, the better, which means the better the effect of exhaust fumes.
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