The air purifier, also known as "air cleaning device" and fresh air, refers to the ability to adsorb, decompose or transform various air pollutants (generally including dust, pollen, odor, formaldehyde and other decoration pollution, bacteria, allergens, etc.)Products that effectively improve air cleanliness are mainly household and commercial air purifiers that remove indoor air pollution.
Principle of air purifier
First, low -temperature asymmetric plasma, this is the most high -end, complex, and effective way today. It is mainly to form a non -symmetrical plasma electric field through high -voltage and high -frequency pulses to form a large amount of plasma in the air.The interstitial impact generates electrochemical reactions, and rapidly degrades to toxic and harmful gases, live viruses, bacteria, etc., thereby achieving the effects of efficient anti -virus, sterilization, odor, smoking, and dust removal.
Second, chemical preparations, which is what we usually call air fresh agents, such as perfumes, but in fact, this method is not good, because it will become a new source of pollution in different environments and cannot be fundamentally eliminated fundaSource of pollution.
Third, adsorption, this is a very widely used air fresh method, mainly using activated carbon filtration, but it cannot fully absorb and can only be absorbed, and it needs to be replaced once it absorbs full. It is relatively troublesome.
Fourth, composite purification, the filtering effect of composite purification is better than the adsorption effect of activated carbon, but the price is higher. It needs to be replaced after a period of time as activated carbon. The cost is extremely high.
Fifth, catalytic and decomposition, this is a new type of technology. Relatively speaking, technology is not perfect. It relies on ultraviolet rays in sunlight to form a role, but ultraviolet rays will hurt the human body under certain circumstances, so it is not recommended to use it.
Sixth, filtering and adsorption.Mainly use sparse crystal silica molecules as filtering medium. The most obvious characteristic is that it can adsorb harmful gases, especially the harmful gases left by decoration, but the adsorption of water and air is almost zero.The cost is extremely low, but the one -time cost is extremely high.
Which brand of the air purifier is good
The breeze (also known as a ventilator) in the machine of the conventional purifier allows the indoor air to circulate. The polluted air is removed or adsorbed by the air filter in the machine (two filters), and then passed through the installation.The negative ion generator of the air outlet (the high pressure in the negative ion generator generates DC and high pressure in the negative ion generator at the time of work), continuously ionize the air, generate a large amount of negative ions, and be sent out by a bark fan to form the purpose of cleaning and purifying the air.
Top ten ranking of air purifiers
The first four hard indicators to buy an air purifier depends on its four hard indicators:
1. Fanfengfeng index
The efficient filtering air purifier must ensure that the indoor air reaches a certain number of air replacements, that is, the air purifier has a certain air volume.The efficient purification effect comes from a strong cycle air volume. With the main 35 kV urban power grids of Batangs three independent power grids, how does Gree air purifier especially with air purifiers with air purifiers require that the air purifier has good good onesAir circulation, and motor is the heart of the air circulation system.The standard requires that the purification machine needs to filter the entire room by more than 5 times in the first hour, and the average is filtered every 12 minutes. The air volume is too small, and the harmful substances cannot be fully decomposed; the air volume is too large, which is obviously a waste.Therefore, in general, for a room with a height of 3m and an area of ??about 20m2, it is best to buy an air purifier with a air volume of about 60m3/h.This can achieve the true purification effect.
2. Purifying efficiency indicator
The main indicator of the performance of the air purifier of Gree air purifier on the national standard evaluation of purification efficiency (CADR). The higher the value, the greater the clean air output ratio of the air purifier, and the higher the purification efficiency of the purifier.Consumers must buy air purifiers, and they must depend on the value of purification efficiency. Consumers with ordinary needs should choose products with CADR values ??above 120. The higher the purification efficiency value, the higher the purification efficiency of the purification machine.There are high requirements for indoor air quality, and you need to choose products with a purification efficiency value of more than 200.
3. Energy efficiency ratio indicator
The energy efficiency ratio is an important indicator of the purification performance and power consumption of air purifiers in the national air purifier standard. The higher the value, the higher the value, the more energy saving the air purifier is. This indicator is in line with the concept of green environmental protection.In the air purifier with good energy efficiency than the air purifier, how does Gree air purifier put forward a high request sales and promotional activity for safe and reliable power supply and power supply. The energy efficiency ratio should be greater than 3.5.However, pay attention to whether the selected purifier has a fan, because the purification efficiency of the air purifier with a fan is relatively high. At the same time, because the energy consumption is required, the energy efficiency is relatively higher than the air purifier without a fan.
4. Security indicators
In addition to the safety indicators of ordinary household appliances, an important safety indicator of the air purifier is ozone safety indicators. Ozone has been proved to be correlated with health hazards in indoor air environment.Test method.Some air purifiers with electrostatic purification, ultraviolet light disinfection and negative ion generator may produce ozone during work. If the ozone index is controlled within a safe range, it can be accepted.

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