A: CADR&CCM is a measure of the purification of purifiers.
Air purifiers have two of the most critical indicators to look at before buying, one is CADR and the other is CCM.
CADR represents the total amount of clean air output after the dirty air is filtered by the purifier in a certain period of time. The larger the number, the faster the purifying speed of the best quiet air purifier, the higher the efficiency, and the larger the applicable area, such as 500m3/h. Purification of 500 m3 of particulate matter in 1 hour.
CCM represents the mass of particulate matter that is accumulated when the CADR filter needs to be replaced (when the CADR value is attenuated to 50%). The larger the value, the better the quality of the filter and the longer the life.
According to national regulations, the CCM of particulate matter is divided into P1-P4 from low to high, and the CCM of formaldehyde is divided into F1-F4 from low to high.
Buy P4 & F4 to get the most out of formaldehyde and harmful particles.
Which is better for air purifiers? What kind of air purifier is good?
The times are developing, science and technology are improving, and people’s living conditions are getting better and better. However, the air quality is getting worse and worse. The long-term influx of unclean air will affect our health. Therefore, we choose to use the best quiet HEPA air purifier. The people are not in a minority, so what kind of air purifier should we buy? Today, Xiaobian will tell you which air purifier is better.
Different filter grades, the purification effect is very different. The higher the HEPA network grade, the smaller the diameter of the particles that can be filtered, and the better the filtration effect. At present, the common air purifiers on the market use H10H9 grade HEPA nets. The mid-to-high-end air purifiers generally use H12 grade HEPA nets. Very few high-end air purifiers use H13 grade HEPA nets. The H13 grade HEPA net is a top-grade imported medical-grade CleansingSoftHEPA filter with good filtration. Therefore, at least the air purifier with HEPA network-level above H12 should be selected, and the air purifier with the H13 level HEPA net should be selected as much as possible.
Which is better for the air purifier? The larger the amount of air cleaning, the larger the purification area.
The larger the air cleaning amount (CADR), the larger the purifying area of the air purifier, and the more the number of purification cycles. The international standard is 5 times an hour. For example, there is an air purifier with a clean air volume of 450m?/h, which is calculated by the room height of 3 meters. The area of the air purifier is 450÷5÷3=30 square meters. When purchasing, consider whether the clean area of the air purifier matches the room area. If the clean area is smaller than the room area, the expected clean effect will not be achieved. Therefore, you should try to purchase an air purifier with a large amount of clean air.
Which is better to buy an air purifier – choose a quiet air purifier
The noise problem is a problem that is often encountered during the use of the air purifier. When purchasing, the noise problem should be considered mainly from the following three aspects: whether the sleep mode can really achieve ultra-quiet; when the maximum air volume is generated Whether the noise can be tolerated; whether the noise in the automatic mode is acceptable. Some purifiers use DC brushless ultra-quiet motor and additional silent cotton technology to effectively reduce noise. At the time of purchase, air purifiers with both mute techniques can be prioritized.
Which is better for the air purifier? The higher the purification efficiency, the better the air purifier.
In addition to considering the one-time purification efficiency, consumers should also consider the purification efficiency of the whole machine, that is, the air purification amount, otherwise it will easily fall into the trap of the merchant: for example, purifying the same volume of air, one-time purification of two purifiers The efficiency is 99%, but the purifier A takes 1 hour, the purifier B takes 2 hours, obviously the purification efficiency of A is higher than B, but the merchant does not mark the test parameters, you see all It is a 99% purification rate. In addition, the efficiency of the air purifier in addition to PM2.5 and formaldehyde removal are different, and the value of both should be considered comprehensively at the time of purchase. Finally, it is necessary to consider that the values of purification efficiency are all tested in a manufacturer-specific experimental environment. Since the indoor air environment is different from the laboratory environment, consumers should not blindly listen to the manufacturer’s virtual standard value when purchasing, but See if the effect is really effective.
Nowadays, many people wear masks for fear of inhaling the polluted air. If the air quality in the home is not up to standard, you may wish to purchase an air purifier to purify the air by using an air purifier. When considering various aspects, only the selection of high-quality air purifiers can help us to improve air quality quickly.
Multi-day fog, bonfire, air purifier, purification function can not be “myth”
Is the air purifier really useful?
According to the publicity of the business, in addition to removing PM2.5, the best quiet air purifier can effectively remove harmful substances such as formaldehyde, and the removal efficiency is very high, reaching 99%. However, because the purification effect is difficult to detect, many consumers buy more psychological comfort when purchasing.
“The best quiet air purifier HEPA has a certain purifying effect on air impurities, but it does not have the ability to completely purify, because it can’t circulate the air in the whole room, such as two rooms and one hall, and can only circulate and purify the air in one space.” Wu Changzhou, who has been engaged in environmental monitoring for more than a decade, said that air purifiers can only make local airflow, so they can only be partially purified.
In the purifier of the air purifier, the air purifier can solve the particles of 0.25 micron and above in the air, but it can not solve the decoration pollutants in the air. “I want to use air purifiers to eliminate harmful substances such as formaldehyde and benzene. This is a mythical function of purifiers.” Wu Changzhu said that if citizens feel that there is a smell in the new house, they can conduct professional testing first, then carry out targeted treatment and cut. Do not rely solely on an air purifier.
At present, the market for air purifiers is getting hotter, the industry is chaotic, and the quality of products is mixed, which affects consumers’ perception of air purifiers to some extent, but this situation will be eased next year. It is understood that a few days ago, the National Standards Committee issued a new revised “Air Purifier” national standard, the new standard will be officially implemented on March 1 next year. By then, it will effectively change the chaotic labeling phenomenon in the air purifier market, and it will also enable consumers to make evidence when they purchase.
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