The appearance of the range hood is important, but the most important thing to buy should be its smoke exhaust ability, and in the face of the various functions and parameters of the range hood, which ones are important? Really practical? So in line with the principle of not buying expensive, only buying the right place, we will teach you how to judge the performance of this range hood through key parameters. Let's take a look~
(1) Wind pressure
In the process of purchasing, you may often see unfamiliar terms such as wind pressure and static pressure, so first consider and distinguish the concepts of these two terms.
Static pressure: There is the maximum static pressure, which refers to the pressure experienced by the range hood when it is in a stationary state (the air volume is 0). Generally speaking, when the range hood is not turned on but the public flue is congested every day, will the fumes of other people's homes run to your house through the pipes?
It should be noted that the static pressure value is positively correlated with the length of the smoke exhaust pipe of the smoke machine, and because the length of the smoke exhaust pipe is limited, and the static pressure value has a direct impact on the length of the smoke exhaust pipe, the static pressure value cannot be too high, too high will cause the length of the smoke pipe to become too long, and the smoke exhaust effect will become worse.
Wind pressure: The wind pressure is also related to the static pressure value, which refers to the static pressure value of the range hood when the range hood is turned on and the exhaust air volume reaches 7m³/min, that is, the resistance of the air volume through the pipeline. There are adverse effects such as oil smoke backfilling, damage to the hood itself, etc.
How to choose:
By floor height: Estimation method: total floors - number of floors = XX value
1~10层可以选择≥350pa
11~20层可以选择≥450pa
21~30层可以选择≥650pa
It is best to choose the maximum wind pressure value within the range of 31 floors and above.
(2) Air suction volume
Suction air volume: refers to the exhaust air volume of the range hood per unit time when the static pressure is zero. Under normal circumstances, the larger the air volume, the stronger the smoke absorption effect, but if the air absorption volume is too large, it will take away too much heat when the gas stove is working, which will affect the use effect. And the large air suction volume does not mean that the smoke exhaust capacity is good, the air volume and the wind pressure should complement each other, can not be unilaterally highlighted, so when buying a smoke machine, we should combine the actual situation of the kitchen to make a choice.
According to the size of the kitchen area: 3-9 square closed kitchens, you can choose a range hood ≥ 16m³/min air volume. Kitchens of more than 10 square meters can choose a hood machine ≥ 17m³/min air volume. If it is an open kitchen, the air volume is increased by 5 m.
According to the habits of stir-frying: families with a large population, who like heavy oil stir-frying and frequent stir-frying, it is recommended to choose 17-21m³/min air absorption, on the contrary, if you don't go to the kitchen and have a light taste, you can choose 16m³/min air volume. The 16m³/min air volume is fully sufficient for single-family houses.
(3) Noise (standard)
The exhaust air volume of the range hood and the noise are positively correlated, the larger the air volume, the louder the noise, the national standard noise does not exceed 65~68 decibels, on this issue, you can go to the physical store to experience it if you have the conditions.
(4) Cleaning (Interior/External)
No matter how high-end the range hood is, it also needs to be maintained to a certain extent, and improper use and long-term non-cleaning will affect the effect of the hood and shorten the service life. Generally, we can only clean the outside, the internal cleaning still needs to be carried out by a professional after-sales team or housekeeping company, the number of dismantling is easy to lose the inside of the machine, and it is also very easy to forget about this, so it is best to choose a range hood with a self-cleaning function when buying, reducing the frequency of disassembly, saving time, effort and worry.
(5) Degree of oil separation
The degree of grease separation is the key indicator of the degree of oil scale accumulation inside the machine, pay attention to choose more than 80% when purchasing, because if the grease separation degree is high, it means that the grease hood will separate the grease from the oil smoke and collect it into the oil cup, and if the grease separation is too low, it will lead to excessive oil accumulation in the machine, and the internal motor, impeller and volute are covered with oil scale, which is difficult to clean, resulting in poor smoke removal effect of the hood, louder noise, breeding bacteria and even the risk of causing fire. Therefore, it is best to choose a smoke machine with a self-cleaning function when purchasing
(6) Product recommendation
Sentai B929BQL, 28m³/min air volume + 1000Pa maximum static pressure + variable frequency cruise pressurization + 55db noise. Sentai is equipped with a Zhifeng chip, which automatically senses all kinds of flue pressure, and when it is strong, it is strong, and the suction power of the smoke machine is automatically adjusted with the flue pressure, and the large suction power is released for a long time.
Three-dimensional air inlet system, bottom-mounted three-outlet multi-dimensional smoke purification system, strong straight exhaust does not run smoke. The double air vent design on the top can suck up all the escaped smoke. Dive into the air inlet, suck the fumes at the source of the smoke, and reduce the escape of fumes. 16 adjustable air volume to meet the amount of oil smoke generated by different cooking.
The above is my sharing, I hope it can help you, if you think what Komori said is useful to you, you may wish to like and pay attention to it!