At present, range hoods are one of the most popular household appliances used by home users. But how to choose a good range hood, but not every user can answer. Here, the author provides several important indicators to measure the advantages and disadvantages of the range hood, for users to refer to when purchasing range hoods.
I. Security performance
As a household appliance, the safety performance of the range hood must pass the national compulsory certification (“CCC†certification, China Compulsive Product Certification first letter abbreviation) before it can be sold. Therefore, users do not have to worry about their safety performance despite the peace of mind.
Second, the use of performance
The key to purchasing a range hood is to understand its performance. The performance is reflected in the following important indicators.
Air volume
The air volume refers to the amount of exhaust air per unit time of the range hood when the static pressure is zero. The state stipulates that the indicator value is greater than or equal to 7 m3/min.
This shows that the air volume is a very important indicator. In general, the larger the air volume value, the faster and more timely the suction of a large amount of fumes in the kitchen. Therefore, when the user selects the range hood, when other indicators are good, try to select a range hood with a larger air volume.
By the way, the amount of wind is not how big it is to design, it is subject to many factors. At present, the air hood of the market can reach 14m3/min, which is already very good.
2. Wind pressure
Wind pressure refers to the static pressure value when the wind hood of the range hood is 7m3/min. The state stipulates that the indicator value is greater than or equal to 80 Pa.
Wind pressure is also an important indicator of the performance of the hood. 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 the smoke Gas is discharged. Therefore, when other indicators are good, the greater the wind pressure value, the better.
Similarly, wind pressure is subject to many factors, as is the wind.
3. Noise
Noise is also an important technical indicator of the performance of the range hood. It refers to the A sound power level measured by the specified method when the hood is operated at the highest speed and rated frequency. The state stipulates that the indicator value is not more than 74 dB.
For this indicator, the user knows that the smaller the noise, the better.
4. Motor input power
The model of the range hood is generally specified as CXW-□-□, where the number in the first “□†indicates the input power of the main motor.
Through the author's understanding, consumers now have a misunderstanding of the input power of the range hood (may be caused by the misleading of some salesmen), and the higher the power, the better.
In fact, there are three reasons: First, the manufacturer increases the power to increase the air volume and wind pressure. If the air volume and wind pressure are not improved, what is the use of increasing power? Second, the higher the power, the greater the noise. Third, the electricity, the country does not advocate water-saving and electricity-saving? What is more, obviously the input power is only 150W, it is hard to mark it above 200W.
As long as the user grasps the above indicators, the quality of the range hood can be judged. There is also a leak problem that is also important, but there is currently no indicator to measure.
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