How to choose an air purifier?

　　How to choose an air purifier, the most fundamental is to refer to the rigid indicators, and then choose different functions and types of products according to your own needs. So the question is, what are the hard indicators of air purifiers?

　　NO.1 purification efficiency index

　　Purification efficiency, or CADR value, is the main performance indicator for evaluating air purifiers. The higher the CADR value, the greater the amount of clean air output by the air purifier, and the higher the purification effect. Everyone should be careful when purchasing, not to be deceived by some false CADR value data.

　　NO.2 Cumulative purification volume index

　　The cumulative purification capacity, that is, the CCM value, is an important parameter index in the new national standard of air purifiers, which is divided into two major directions: particulate matter and formaldehyde. Since most air purifiers on the market use filters to absorb and filter pollutants in the air, they must be replaced when the adsorption is close to saturation. The CCM value is the value for judging the service life of the filter. There are four grades of CCM particulate matter from P1 to P4. The higher the number, the higher the cumulative purifying amount. Similarly, CCM formaldehyde is divided into four grades from F1 to F4.

　　NO.3 High energy efficiency grade index

　　It refers to the ratio of CADR to rated power, which is the standard of power consumption. For particulate matter purification energy efficiency values, 2 qualified grades and 5 efficient grades. For purification energy efficiency such as formaldehyde, 0.5 is qualified grade and 1 efficient grade.

　　NO.4 Noise Control Index

　　As a home appliance product that needs to run for a long time, the noise level of the air purifier during working hours needs special attention. If it is used in a quiet environment such as a bedroom or a children's room, then a "loud" air purifier is likely to disturb the user's rest, which is obviously unacceptable.

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