First, the working principle of the dehumidifier:
Dehumidifiers can be divided into many types, including rotary type:
There is also a condensing type, and the condensing type is the mainstream in the market, occupying a large market share. So today, let's take the condensing dehumidifier as an example, first picture:
The general principle is that the humid air from the fan is pumped into the machine, and after filtration, heat exchange is carried out in the dehumidifier, and the water vapor in the air is condensed into water droplets, which are discharged in the water tank, and the dry air is discharged through the fan after treatment. Throughout the whole picture, several important components are, compressors, condensers, evaporators, water tanks, fans, etc., especially compressors are the most important, just like the engine of a car. Therefore, when purchasing a dehumidifier, you should focus on the quality of the compressor.
2. How to choose a dehumidifier? Which brand of dehumidifier is good?
1. The ability to remove wetness
When buying a dehumidifier, you often see two parameters, let's get to know:
Nominal dehumidification capacity: The common unit is "kg h", and this dehumidification capacity is the result of testing in an environment with a temperature of 27 and a relative humidity of 60%.
Rated dehumidification capacity: the common unit is "L D, L H", L D for example, 20L D means that the machine can pump 20L of water for one day, this parameter is tested in a standard environment, that is, the temperature is 30, the relative humidity is 80%. If the product label is not specially stated, it generally refers to the rated dehumidification capacity, of course, this parameter will deviate in specific use.
2. Match the appropriate model.
After understanding the dehumidification capacity, choose the right dehumidifier according to the area used. There are two unwritten standards in the industry that can be referred to, the rated daily dehumidification capacity of 2 is the theoretical maximum dehumidification area of a single room, or the dehumidification capacity per square meter of a single room is 06L is ideal.
In order to give you a more intuitive understanding, I will give you an example.
Assuming that a dehumidifier has a rated dehumidification capacity of 20L d, then its maximum dehumidification room area is 40 square meters.
Let's say you have a single room of 40 square meters, multiply 40 by 06 is equal to 24, then it is ideal to choose a dehumidifier with 24L D.
3. Hardware reference requirements.
1) Compressor.
The most important component of the dehumidifier is the compressor, and the selection of the compressor is recommended as follows: most of the best compressors in the industry are in Japan, especially the Panasonic compressor is the strongest; Domestic compressors are mainly low-end, and European and American compressors are not small enough and relatively noisy.
2) Water tank capacity.
Dehumidifiers are generally not fixed, so there is no fixed facility for direct drainage. This requires us to choose a larger capacity tank as much as possible to avoid frequent pouring of water. It is also worth noting that the general dehumidifier is equipped with the function of automatic shutdown when the water is full, which means that the capacity of the water tank directly determines the working time of the dehumidifier assuming that it is unattended.
3) Universal wheels.
It is best to choose a large model or a large-capacity dehumidifier with universal wheels, which is easy to move.
4. Brand selection tendency.
Compared with other electrical appliances, the demand for dehumidifiers in the market is not large, but there are many brands, such as Panasonic, Mitsubishi, Sharp, Gree, Pulishi, Deye, Oujing, etc. Among these many brands, how to choose? After some comparison, it is recommended to choose the domestic brand of foreign compressors, or the domestic brand of domestic compressors with strong strength, this kind of dehumidifier is cost-effective.
Why? Buy foreign brands directly, the cost performance is not high, for example, buy a Panasonic dehumidifier, it may be a few thousand, and Deye also uses Panasonic compressors, it may be done for thousands of yuan, in this case, who will you choose?
Facts have proved that the eyes of the masses are bright, in terms of the domestic dehumidifier market share, Deye, Oujing, Gree, Duolexin, Baiao occupy more than half of the market share, and have won the favor of the market, especially Deye, which is the industry boss and the domestic leading enterprise.
Why did Deye become the leader? Mainly because the products have excellent cost performance, many are equipped with Panasonic compressors and large enough water tanks, and some have also added activated carbon filters, universal wheels and wire winding posts, etc. The production line is rich and comprehensive, the noise control is ideal, which meets the expectations of the public and has a refined appearance.
5. Ideal noise control.
Because the fan and compressor are working, the noise cannot be avoided, but the strength of the brand will control the noise within the ideal range, if the machine is turned on while sleeping, it is recommended to control it at about 45 decibels, or even lower. After all, low-noise products are good for our sleep.
6. Other auxiliary functions.
Dehumidifiers basically have two major functions, dehumidification and drying, in addition, with the evolution and development of products, more and more functions are gradually configured, such as constant humidity and purification functions. Constant humidity can effectively maintain indoor humidity and avoid dryness caused by excessive dehumidification of the dehumidifier. The purification function is to purify the air at the same time in the process of dehumidification, such as activated carbon, air negative ions, etc.
3. Cost-effective dehumidifier recommendation
1000 yuan cost-effective model
1), Deye DYD-E12A3
Small dehumidifier, 12L D; Energy saving, light noise, only 38 decibels; Shutdown of full water + large water tank, the machine works for a long time to avoid repeated pouring of water; Support constant humidity, dry clothes function and intelligent APP control.
2), Oujing OJ-128E
The same 12L D model, 36 dB silent operation, 2L water tank; Three-color humidity monitoring function; Support dry clothes and automatic water full shutdown; There are universal wheels, so there is no need to move.
-2000 cost-effective model
1) Deye DYD-T22A3
The core component is the Panasonic compressor, with three main functions of dehumidification, drying and purification, supporting APP intelligent control, 22L D, suitable for single room 45 square meters and 130 units, 41 decibels of light sound dehumidification, and is also equipped with universal wheels and winding columns, which can be connected to direct drainage.
2) Oujing OJ-223E
Panasonic compressor, 22L D, 5L water tank. Highlight functions include dehumidification, drying and purification, efficient aldehyde removal and sterilization; Equipped with intelligent control APP, support voice control, convenient and fast; 5L large water tank, can also be connected to the external drain pipe.
3) Baiao PD602AR
Meizhi compressor, 60L D, 8L large water tank; The dehumidification function is extremely powerful, and the noise is also relatively large, at 52 decibels; It supports the function of dehumidification and drying and purification, and can be intelligently controlled by APP. This dehumidifier can be used at home or commercially. The home is large, or has a damp basement and warehouse, if you don't mind the noise of 52 decibels, everything is OK.
4) Panasonic F-C16YCR
A very delicate and compact dehumidifier with an area of only A4 size; Applicable area of 16-25 square meters; Support dehumidifying and drying clothes; 2L water tank, 40 dB noise, full water reminder.
5) Mijia CSJ0122DM
A cost-effective dehumidifier. 22L D, suitable for living rooms or flats up to 45 m², 355 dB of noise, equivalent to my whisper, tank 45L, water tank storage and water pipe drainage, support three dehumidification modes: smart, sleep, and dry.