Range hoods are standard in modern kitchens, which not only protects the home decoration environment from soot, but also protects the family from kitchen fumes. Buying a range hood is a good way to buy a range hood. The ultimate goal. Someone will say that it is necessary to have a large-capacity hood for good smoke-absorbing smoke. But is this really the case? Today we will solve this puzzle for everyone.
There are three performance indicators for the range hood.
1. The air performance indicators that will be marked by the general hood, including the air volume (how much is the air volume per unit time, the meter is usually measured in cubic meters per minute), the wind pressure (in units of Pa), and the total pressure efficiency (the consumption of the hood) The ratio of energy to air volume and wind pressure, as a percentage);
2. Odor reduction: This is an indicator of the capacity of the range hood. It is related to human health and is divided into normal odor reduction (exhaust effect within 30 minutes, national standard requirement is greater than 90%), and instantaneous odor reduction ( The effect of exhausting smoke within 3 minutes, the state requires more than 50%);
3. Grease separation degree, which refers to the ability of the range hood to separate grease and smoke. It is an environmental protection indicator. The national standard requires grease separation degree to be 80% or more.
From the analysis of these indicators, we should understand that it is wrong to see the air volume or wind pressure in the kitchen hood. From the health point of view, the odor reduction is very important; for the overall environment, the grease separation is very important. Some people say that our house's range hood is particularly large, can reach 17 cubic meters / minute, but if there is no wind pressure, the air volume is no longer enough to suck out the smoke, your home range hood is a large exhaust fan at best.
The hood is the only factor that determines the effect of smoke exhaustion? Wrong!
Installation and flue environment directly affect the effect of exhaust fumes
How much influence does the public chimney have on the smoke extraction effect of the hood? In theory, the flue environment has constraints on the hood effect of each household. For low-floor users who live in high-rise buildings, you should choose a hood with a large wind pressure, so that you can effectively discharge the lamp to the public pipe.
The installation of specialization is also a major factor affecting the use of the hood. For example, the farther your kitchen opening is from the hood, the worse the effect will be. The more corners, the worse the effect; for example, if the mesh size is reasonable, the first mesh of the hood is visible to you. There is a filter, the second is in the turbine, and the third is in the flue. The three meshes are smaller than one to ensure that the fumes are effectively discharged.
Side suction hood must be good? Wrong!
It has security risks. Now there is a misunderstanding about the side suction hood. It seems that the closer it is to the stove, the better it is. In fact, this is a safety hazard. Some side suction hoods that do not have the ability to separate soots are too likely to cause a fire if they are installed too low. I heard that a family had a low fire in the oil sump of the side hood because the side suction hood was too low.
Combine the kitchen conditions to choose the range hood
More than 10 years ago, the better the manufacturer’s propaganda power, the better the range hood effect, and now it seems to be a joke. There are other jokes on the market now: for example, the larger the air volume, the better the smoke exhaustion effect.
The expert's advice on the purchase of the range hood is to choose the range hood according to the actual situation of the house:
1. The air volume is not the bigger the better, the general household hood cooking hood, the air volume is actually 11-12 cubic meters / minute is enough, too much heat loss of gas;
2. The selection of wind pressure is also related to the living conditions of your home. If you live on the fifth or sixth floor of the upper level, it is recommended to choose a hood with a large wind pressure, otherwise the effect of smoke exhaustion will be worse;
3. The two indicators of temperature reduction and grease separation, the newly listed products may already have been marked, and pay more attention to the values ​​of these two indicators.
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