When choosing range hoods, we should not only pay attention to their power, performance characteristics and appearance design, but also understand several common parameters in the process of purchasing range hoods, so as to ensure them from the actual situation and our own needs. For example, the exhaust air volume of range hood plays a key role, so how much is the exhaust air volume of range hood more appropriate? Or do range hoods with larger exhaust air represent their better performance? Friends who have similar puzzles can refer to the following for understanding and analysis.

1. What is the exhaust volume of the range hood?

At present, the exhaust air of range hoods on the market is ≤ 10 m3 /min,114m3/min, 15- 17 m3 /min and18-20 respectively. Because increasing the exhaust air volume of the range hood alone will inevitably increase the noise, after years of research and testing, the exhaust air volume of the range hood is the most suitable between 15 cubic meters and 18 cubic meters. If the noise of the range hood is low, it is suggested that the exhaust air volume should be as large as possible, but not more than 18 cubic meter.

Second, the greater the displacement, the better the range hood?

We often buy things and never look inside. As long as it looks solid and elegant, that's what we want, but it broke down a few days after we bought it, and it can't be used. What shall we do? Today, we will talk about such problems as range hoods. Is the larger the displacement, the better? Some people like large exhaust volume, while others like low noise. What we want to tell you today is to see if this is the case.

There are three performance indexes of range hood.

1. Generally, the air performance indicators marked by range hoods include air volume (in China, the air volume per unit time is generally measured by cubic meters per minute), wind pressure (in pa) and total pressure efficiency (the ratio of energy consumed by range hoods to air volume and wind pressure appears as a percentage);

2. Degree of odor reduction: This is an index reflecting the capability of the range hood, which is related to human health. It can be divided into normal odor reduction degree (the national standard requires that the smoke exhaust effect is greater than 90% within 30 minutes) and instantaneous odor reduction degree (the national requirement requires that the smoke exhaust effect is greater than 50% within 3 minutes);

3. Grease separation refers to the ability of a range hood to separate grease from flue gas, which is an environmental protection index. The national standard requires that the grease separation be greater than or equal to 80%.

From the analysis of these indicators, we should understand that it is wrong to choose a range hood for the kitchen only by looking at the air volume or air pressure. From the health point of view, the degree of odor reduction is very important; The degree of oil content is very important for the overall environment. Some people say that the air volume of our range hood is very large, which can reach 17m3/min, but if there is no wind pressure, no matter how large the air volume is, it will not suck out the lampblack. Your range hood is a big exhaust fan at best.

The above example is a suitable introduction to the exhaust air volume of range hood, and there are some similar puzzles. It can be seen that although a key parameter in the process of purchasing a range hood is its exhaust volume, we can't judge the product itself only according to the exhaust volume of the range hood, that is to say, it is not the range hood with large exhaust volume that has the best oil smoke absorption effect in the later period, but also other factors, including power, style design, price and so on.

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