Little Red Flower Review said:
The light rain in March is drizzling, drizzling constantly.
The friends in the south are about to usher in the wet and unbearable " back to the south " and "plum rainy day". You can paint on the glass, and you won’t dry it no matter how you dry it. There are also clothes and quilts that are moldy, electrical appliances are rusted and short-circuited, and the floor is wet and slippery...
At this time, you may need a dehumidification tool - dehumidifier !
The dehumidifier products on the market are diverse. Which one is suitable for you, dehumidification and reliable?
Little Red Flower Evaluation combines the recent comparison and evaluation report of dehumidifiers released by the Guangzhou Consumer Council and the Hong Kong Consumer Council. Provide some guidance for purchasing a dehumidifier.
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1
dehumidification capacity
3 models are not marked with nominal dehumidification. The actual measurement of Gree wins Kuichuan well at the bottom
judging whether a dehumidifier is good or not. The first thing to do is of course its dehumidification performance.
In the merchant’s promotion, you can see words such as “ nominal dehumidification ” and “ maximum dehumidification ”. What does this mean? Is this kind of publicity reliable?
"Nominal dehumidification amount" refers to the dehumidification amount measured by the product under the working conditions specified by the standard. Standard GB/T 19411-2003 dehumidifier requires: the actual dehumidification amount measured in the nominal working conditions of the dehumidifier, and should not be less than 95% of the nominal dehumidification amount . The results of the nominal dehumidification amount and actual measured dehumidification amount of
12 products are shown in the figure below: The results of
can be seen. Except for the samples from the three brands of Sharp, Chuanjing and TCL that cannot be judged because they are not marked with nominal dehumidification, the test results of other samples meet the standard requirements.
Judging from the actual measured dehumidification, Gree is the best, and Chuanjing is the weakest.
In addition, the measured values of Oujing, Pulishi, Baiao and Huoshi are lower than the marked values.
In addition to marking the nominal dehumidification amount, the products on the market will also declare the dehumidification amount at a certain temperature and humidity to show the maximum ability of the product. However——
Note: The maximum dehumidification amount cannot accurately reflect the actual dehumidification situation. It is not recommended to purchase dehumidifier products based on this!
The dehumidifier test report released by the Hong Kong Consumer Council pointed out that the usual environment used by dehumidifier manufacturers (usually 30℃ and relative humidity 80%) did not reflect the actual use.
When used in actual use, the indoor humidity is relatively high at the beginning of the dehumidifier starting. The dehumidifier will dehumidify faster during this period and the dehumidification efficiency will be higher. However, after operating for a period of time, the indoor humidity will drop and will not remain at a high level for a long time. Therefore, the dehumidification speed of the dehumidifier will also slow down as the indoor humidity decreases.
Therefore, most dehumidifier manufacturers on the market claim that the normal environment (usually 30℃ and relative humidity 80%) cannot accurately reflect the indoor environment when closing the windows when actually using the dehumidifier.
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Energy-saving and power-saving
Pulishi is the most energy-saving, Sichuanjing is the most power-consuming
dehumidifier is turned on for a day, and the electricity bill is also considerable. Therefore, it is important to choose a dehumidifier that saves electricity.
"Unit Power Dehumidification" reflects the dehumidifier's dehumidification capacity under the same power consumption. Based on this, we can see which dehumidifier is more energy-saving. GB/T 19411-2003 standard stipulates that the unit input power dehumidifier should not be less than 95% of the value specified in Table 4 of the standard. The energy-saving evaluation value of the dehumidifier is also stipulated in the CQC3141-2014 "Technical Specifications for Energy Saving Certification of Dehumidifiers". The test results of the "unit power dehumidification amount" of the
12 dehumidifier are as follows:
According to the results, the unit input power dehumidification amount of 12 products is not met by the requirements of GB/T 19411-2003 for only 12 products, and all other samples meet the requirements.
Among them, the samples of Gree TOSOT, Haier , TCL, Sharp , Pulishi have performed more outstandingly, all of which have reached or exceeded the energy-saving evaluation value specified in CQC3141-2014. When the same dehumidification amount is reached, it is more energy-saving and economical to use.
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3
dry effect
Gree and Sharp drying performance are outstanding
"Return to the South" small inner is not enough to change? Now it depends on the clothes drying function of the dehumidifier.
Drying function is one of the most widely advertised functions of dehumidifiers. It refers to using it to blow out the dry air of lower humidity to take away moisture from the clothes, so as to obtain the effect of drying clothes.
As a young man in the new era with ideals, quality and pursuits, Xiaohonghua review stated that she finally has a way to deal with the magic attack of humid air.
This evaluation analyzed the effect of the dehumidifier sample drying function from two aspects: load drying rate (reflecting the ability level of the dehumidifier product drying function) and drying uniformity (reflecting the drying deviation between loads, the smaller the deviation, the more uniform it is). The results of the
test show that the drying functions of the two dehumidifier samples of Gree and Sharp are outstanding in . In addition, the drying performance of the Huoshi, Haier and TCL samples is also remarkable. Consumers who need drying clothes can give priority to these models.
4
quietness
sample noise value is the lowest, and the highest
dehumidifier is also very noisy when it is turned on. If there are pregnant women, children, and elderly people at home, it is even more unbearable. Therefore, it is also necessary to choose a less noise type. It is also stated in
GB/T 19411-2003 that the noise of the dehumidifier should not be greater than the specified value in Table 5.
evaluation results show that samples below the standard specified value and below 43dB(A) include Gree, Haier, TCL and Pulishi, which are quieter than the other 8 products when used.
5
safety indicator
sample pass rate is only 75%
Refer to the electronic product CCCh mandatory indicator, the safety indicator pass rate of 12 samples is only 75%. There are 3 dehumidifiers that really surprised the Xiaohonghua evaluation.
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Recommended product
After comparing various indicators, Xiaohonghua evaluated selected three dehumidifiers, namely Gree DH20EI, Haier DE20A, and TCL DEC21E as recommended products.
▲Gree DH20EI
Price: 2590 yuan
Recommended reason: It has achieved remarkable results in dehumidification ability, energy saving, power saving, clothes drying effect, safety, quietness, etc., meeting the needs of consumers in many aspects, and is an excellent dehumidifier product.
▲Haier DE20A
Price: 1819 yuan
Reason for recommendation: The noise value is the lowest among the 12 samples. Consumers who have high requirements for environmental quietness can focus on this one. In addition, dehumidification ability, drying effect, energy saving and electricity saving are all remarkable, and have good safety.
▲TCL DEC21E
Price: 1698 yuan
Recommended reason: Quietness, energy saving and electricity saving, drying effect are remarkable, moderate dehumidification ability and good safety.
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0 Recommended to purchase and use
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Considering the different sizes of the room used by consumers, it is recommended to use products with different dehumidification amounts.
2
Choose to buy a product with a CCC mandatory certification mark to maximize the safety of the product; and choosing a product with an energy-saving mark can save more power.
3
When using the drying function of the dehumidifier, try to choose to use it in a smaller confined space and run the dehumidifier for a long time; try not to stack clothes together to leave gaps; pour the water from the dehumidifier water tank within 3-5 hours at the same time to prevent the water tank from being full and causing shutdown.
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One more thing about the difference between dehumidifier and air conditioner dehumidification function. The dehumidification principle of air conditioners and dehumidifiers is both liquefied by humid air when cooled. The main difference is that: air conditioners extract outdoor air into the room, which can play a certain dehumidification effect while reducing the temperature; dehumidifiers extract indoor air and dry it before discharge into the room. Therefore, to achieve the same dehumidification effect, the electricity consumption efficiency of the air conditioner is much lower than that of the dehumidifier, which is very uneconomical.
Text/Jiangzhou Sima
Little Red Flower Evaluation Introduction:
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