The range hood can provide a comfortable and clean kitchen environment. The exhaust volume of the kitchen range hood is one of the criteria for measuring the quality of the range hood. Theoretically, the larger the exhaust volume of the kitchen range hood, the faster it can suck out the fumes in the kitchen. So what is the appropriate air volume for a household range hood?
Because increasing the exhaust volume of the kitchen range hood alone will inevitably increase the noise, the exhaust volume of the kitchen range hood is most suitable between 15 cubic meters and 18 cubic meters. If the noise of the kitchen range hood is relatively small, it is recommended that the exhaust volume is as large as possible, but not more than 18 cubic meters.
1. When the exhaust volume of the kitchen range hood is too small, the speed of removing fumes is slow, or the fumes are not cleanly extracted. Generally speaking, less than 10 cubic meters/min is considered to be too small (excluding 10 cubic meters), and it is not recommended to buy it. And as the suction power of the range hood weakens with the increase of use time, the fumes are even more difficult to be extracted.
2. When the air volume of the kitchen range hood is too large, it will draw away the surrounding oxygen and have a certain impact on the flames, and also take away some of the heat. At the same time, the large exhaust volume has certain requirements for the range hood motor, so it increases the noise and affects the comfort of cooking. Generally speaking, the exhaust volume is too large if it exceeds 20 cubic meters.
3. The air volume of the kitchen range hood is not the standard for judging the effect of oil fume extraction. Generally speaking, there are two technical parameters to measure the effect of the range hood, one is the odor reduction degree, and the other is the grease separation degree. In the public flue environment, the optimal air volume of the range hood is about 15m³/minute. Excessive air volume does not help improve the effect of the range hood.
4. Generally speaking, due to the space limitation of the public flue, the air volume of the range hood reaches 15m³/minute. If the air volume increases further, it is easy to increase the speed and pressure of the gas discharged into the flue, resulting in "backflow", which not only seriously deteriorates the working characteristics of the fan, but also causes oil smoke to flow back, which cannot achieve the purpose of effective smoke exhaust. The poor oil smoke extraction effect will also bring intolerable noise to users. Even if the home does not use a shared flue, the narrow air inlet will cause the loss of heat from the stove due to the increase in air volume.
Therefore, blindly increasing the air volume and increasing the power are not the real meaning of the range hood for the kitchen. Consumers are concerned about whether the kitchen range hood can really clean the kitchen oil smoke in a quiet environment. The environmentally friendly range hood with high efficiency and quiet suction is the general trend of the kitchen appliance industry.
