How to choose an air purifier? Look at these four points not confused
by jackjack on Oct 12, 2023
There may be many hidden dangers in the air that usually seems to be abnormal, such as excessive release of formaldehyde during the renovation of new houses, a large number of molds bred during the plum rain season, and viruses spread by influenza outbreaks. Can also improve the indoor air environment, our best choice is the air purifier. But at present, there are so many kinds of air purifiers on the market, how do we choose to avoid "stepping on the thunder"?
First, what are the specifications of the air purifier
There are many kinds of air purifier specifications, according to the different use of the environment and the size of the space, can be divided into small air purifier, medium air purifier and large air purifier three kinds.
1. small air purifier
Small air purifier can meet the area of 30 square meters below the room use, its purification air volume is about 150m, this purification air volume can achieve a very good purification effect, more suitable for small family choice.
2. medium air purifier
Medium air purifier use range between 30 square meters -50 square meters, purification air volume between 250m and 400m, more suitable for placed in the living room, study or office and other closed places, more suitable for medium and large household choice, but should not be placed in public places.
3. large air purifier
Large air purifier is suitable for more than 50 square meters of space, its purification air volume is also relatively large, generally more than 400m. Large air purifiers are generally used in commercial use, its purification capacity is relatively strong, more suitable for outdoor use, if it is home is not recommended to choose this model.
Second, what are the advantages of air purifiers
- Good filtering effect
The biggest role of the air purifier is filtration, so it can effectively filter allergens in the air and reduce the spread of disease. Air purifiers can also eliminate viruses and bacteria, effectively settle dust and impurities in the air, etc. If it is a recommended choice for people with respiratory diseases, it can prevent respiratory diseases and be safer.
- Deodorization is more effective
In addition to purifying the air, the air purifier can also effectively remove the smell in the air to achieve the effect of deodorization. It can not only remove the smoke generated during cooking, but also absorb harmful substances such as formaldehyde generated during decoration, so that the health of the family is protected.
Third, what additional functions the air purifier has
1. intelligent control function
Now many home appliances have added intelligent control functions, and air purifiers are no exception. This function can be controlled by voice, and can also be remotely controlled by connecting the mobile phone APP with the air purifier. This function not only provides convenience for our daily life, but also avoids the embarrassment of forgetting to turn off the air purifier when going out.
2. noise reduction function
Noise reduction function is also a more important function, all electrical appliances will produce a certain amount of noise when running, if you want to sleep a good night's sleep to ensure that the noise is not too large when running. An air purifier with noise reduction function is more important, which can make the noise of operation smaller and sleep more at ease.
Fourth, how to buy an air purifier
- Choose according to the working principle
① Passive purification principle
The principle of passive purification is to use the fan to inhale the air and then purify the dust and impurities in the air through the multi-layer filter. This working principle of the air purifier depends on the difference between the fan and the filter to determine the purification effect, and the placement and effect are also inseparable.
② Principle of active purification
The principle of active purification gets rid of the restrictions of fans and filters, actively releases purification factors in the air, and sends sterilization molecules to all corners through diffusion. This purification principle is not limited by the location and is more suitable for selection.
③ Double purification principle
The dual purification principle is to combine the active and passive purification principles, which can make up for the respective shortcomings of the two principles, and the effect is better. However, although the double purification principle has a good effect, the price is more expensive. If the budget is sufficient and the indoor air quality requirements are relatively high, it is recommended to choose this principle of air purifier.
- Select according to important parameters
The CADR value refers to the efficiency index of the air purifier and represents the total amount of air purified per unit time. The CADR value is related to the size of the house area, and the bigger the better. If the CADR value is too high, it will cause a waste of resources. When we choose, we can choose according to the size of the space used, the general small and medium units choose CADR values of about 150, and the larger units should choose air purifiers with CADR values of more than 200.
The CCM value refers to the cumulative air purification amount, which can be divided into four levels, P1, P2, P3 and P4, and the higher the level, the better the purification effect. If the budget is sufficient, you can choose a P4 grade air purifier, so that the service life will be longer and the cost performance is higher.
3.according to the purification technology selection
① Ether quantum purification technology
Ether quantum purification technology uses quantum chips to micro-control air quality. Activated carbon is incorporated into the filter for faster purification. This technology is more significant for the purification of gas pollutants, can effectively kill allergens, and efficiently degrade pollutants in the air.
② Anion purification technology
Negative ion purification technology can release negative ions in the air, reduce the activated carbon of pollutants in the atmosphere, and reduce the harm to the human body. It can effectively remove dust, increase the oxygen carrying capacity of blood, promote human metabolism, and also have a certain sterilization effect. However, the negative ions exist in the air for a short time and need to be continuously released to achieve the effect.
③ activated carbon filter purification technology
Activated carbon filter purification technology is the use of activated carbon to adsorb particles in the air, its adsorption capacity is stronger, can effectively adsorb dust in the air, free molecules and so on. However, this purification technology can only temporarily adsorb, and with the change of temperature and wind speed, it is easy to let the pollutants free out, and the filter material needs to be replaced regularly, which is more troublesome.
④HEPA filter purification technology
HEPA filter purification technology has a strong ability to capture particles, its adsorption capacity is large, the purification efficiency is relatively high and has water absorption. This filter effect is very good, can more effectively filter impurities in the air. However, because the haze in our country is relatively serious, too much dust is easy to cause the problem of shortening the service life.
4. according to the body structure selection
The body structure of the air purifier can be divided into two types according to the different air outlet mode, which are the lower air inlet and the upper air inlet and the side air inlet and the side air outlet.
① The air comes in from below and the air comes out from above
The air purifier with the air inlet and the air outlet is a more common one, and the air passes through the filter in a vertical way, and the stay time is relatively short. This type of air purifier has a better effect on the removal of PM2.5, but the effect of harmful gases such as formaldehyde and bacteria and viruses is biased.
2 Side wind inlet and side wind outlet
The air purifier with side air inlet and side air outlet has small wind resistance and large air area, which can absorb more harmful gases. This type of air purifier will have a longer service life, but it needs enough space to be placed, otherwise it will not achieve the effect.
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