The new national standard for air purifiers has been officially implemented. When purchasing air purifiers, consumers can refer to the “three highs and one low” in the new national standard, that is, high CADR value, high CCM value, high purification energy efficiency and low noise parameters. to a high-performance air purifier.
but do you know?
Improper use of air purifiers may cause secondary pollution! ! !
Misunderstanding 1: Put the air purifier against the wall
I believe that after many consumers buy an air purifier, most users will place it against the wall. What you don’t know is that in order to achieve the ideal whole house purification effect, the air purifier should be placed away from the wall or furniture, preferably in the center of the house or at least 1.5~2 meters away from the wall. Otherwise, the airflow generated by the purifier will be blocked, resulting in a smaller purification range and poorer efficiency. In addition, placing it against the wall will also absorb the dirt hidden in the corner, affecting the service life of the purifier.
Misunderstanding 2: The distance between the purifier and the person is good
When the purifier is working, there are many harmful gases around. Therefore, do not place it too close to people, and it should be properly raised to avoid children’s contact. At present, the mainstream purifiers on the market are all types of physical filtration, but there are also some purifiers of the electrostatic adsorption type. The electrostatic adsorption type purifier can make the pollutants in the air adsorbed on the electrode plate when working. However, if the design is not reasonable enough, a small amount of ozone will be released, and if it exceeds a certain amount, it will stimulate the respiratory system.
When using electrostatic adsorption purifiers, it is best not to stay in the room and close it after entering the room, because ozone can be quickly restored in the space and will not remain for a long time.
Misunderstanding 3: Do not change the filter for a long time
Just like the mask needs to be changed when it is dirty, the filter of the air purifier should also be replaced or cleaned in time. Even in the case of good air quality, it is recommended that the use of the filter should not exceed half a year, otherwise the filter material will release harmful substances after being saturated with adsorption, and instead become a “source of pollution”.
Misunderstanding 4: Put a humidifier next to the purifier
Many friends have both humidifiers and air purifiers at home. Many people turn on the humidifier at the same time when using the air purifier. In fact, it has been found that if the humidifier is placed next to the air purifier, the indicator light of the purifier will alarm and the air quality index will soar rapidly. It seems that there will be interference when the two are placed together.
If the humidifier is not pure water, but tap water, because the tap water contains more minerals and impurities, the chlorine molecules and microorganisms in the water may be blown into the air with the water mist sprayed by the humidifier, forming a source of pollution.
If the hardness of the tap water is high, there may be white powder in the water mist, which will also pollute the indoor air. Therefore, it is recommended that if you need to turn on the humidifier and the air purifier at the same time, you must leave enough distance.
Misunderstanding 5: Only the smog can turn on the purifier
The popularity of air purifiers is caused by persistent smog weather. However, as we mentioned above, for air cleaning, not only smog is pollution, dust, odors, bacteria, chemical gases, etc. will have adverse effects on the human body, and the role of air purifiers is to These harmful pollutants are removed. Especially for the newly renovated new house, the frail elderly people who are sensitive to the air, young children and other susceptible people at home, the air purifier can still play a certain role.
Of course, if the weather is sunny outside, it is recommended to ventilate more indoors and maintain a certain humidity so that fresh air can flow indoors. Sometimes this indoor air quality is cleaner than having an air purifier on all year round.
Misunderstanding 6: Air purifier display is excellent, you don’t need it
The power consumption of air purifiers is generally not high. When the air quality is poor, when you use the purifier to see that the display shows that the air quality is excellent, please do not turn off the purifier immediately. good.
Myth 7: Turning on the air purifier will definitely work
For indoor pollution control, there are many factors affecting the source of pollution, and it is not only possible to remove it by air purifiers. For example, in places with frequent smog, if you encounter persistent smog, you should first close the windows and open as few doors as possible to create a relatively closed space indoors; secondly, adjust the indoor temperature and humidity conditions. In winter, humidifiers, sprinklers, etc. The method will increase the relative humidity and prevent indoor dust. In such cases, using an air purifier will be more effective. Otherwise, the source of pollution will continue to come in through the window, and the effect of the air purifier will be greatly reduced even if the air purifier is always on.
Shopping Tips
When choosing a purifier, it mainly depends on the CADR value and the CCM value. Note that both must be looked at.
The CADR value represents the purification efficiency of the purifier, and the higher the CADR value, the faster the purification speed.
The CADR value divided by 10 is the approximate applicable area of the purifier, so the higher the value, the larger the applicable area.
There are two CADR values, one is “particulate CADR” and the other is “formaldehyde CADR”.
The larger the CCM value, the longer the life of the filter.
CCM is also divided into particulate CCM and formaldehyde CCM, and reaching the current highest national standard P4 and F4 levels is just the entry standard for a good purifier.
To remove haze mainly depends on the CADR and CCM of particulate matter, including PM2.5, dust and so on.
Low-end machines generally have a high CADR value and low CCM, and purify quickly but need to change the filter frequently.
High-end machines are somewhat the opposite, with moderate CADR values, very high CCM values, sufficient purification speed and fairly long lasting.
Post time: Jun-07-2022