Focus on the filtration and purification methods of purifiers
The main filtering methods of air purifiers are filtered and electrostatic. The main difference is that the former is equipped with a HEPA (High Efficiency Air Filter) filter that needs to be replaced, while the latter is not, but requires frequent washing of electrostatic dust collection components. Filtered air purifier is now the most common type of product on the market, its winning formula lies in the safety and efficiency. This is the resolution of its principle of operation. The filtered air purifier accepts the physical purification type of filter cartridge. As only through filtration to hold physical purification, the purified air will almost not occur to the human body “side effects”, so it is a safer way. Now the best purification effect is the combination of two ways of purification.
CADR value is the key
Now China’s consumers for air purifier cognitive situation, can be briefly summarized as “concern high understanding less”. The CADR value is a recognized indicator of air purification performance in the United States and China, which can be used to express and compare the performance of air purifiers under the same testing environment.
The CADR value is the clean air output ratio, which represents the volume of air that can be purified in a unit of time, and is an exceptionally objective value to weigh the purifying ability of the purifier. The product with high CADR value is the best measure of whether the air purifier is useful and qualified. For CADR, we do not need to study in depth, just know that the larger the CADR value represents the better performance.
The applicable area of the purifier
Many people think that their own purchase of air purifiers, nothing effective, otherwise. Many businesses in the sale of air purifiers, and not reasonable for consumers to recommend suitable products. In the new round of international standards for air purifiers, the country clearly requires the realistic CADR value of the scale air purifier, the CADR value indicates the amount of air cleaning per hour, and under the same conditions, the larger the applicable area, the better.
To see the noise value can not be large
As usual, the noise in the normal environment is 40-70 decibels. Noise, everyone does not want to hear, rare is the moment of sleep in the evening, if up to 60-80 decibels of noise, it will occur a lot of impact.
But for this problem, the air purifier manufacturers also for everyone full thought. Many air purifiers come with different airflow modes, such as high school low and other different modes to choose from. In addition, some products also include a sleep mode, the measured noise is 26 decibels (normal environment is 20 decibels). For the models without sleep mode, consumers in the purchase, just do not purchase noise across 60 decibels of the product.
