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(1) Clean air volume (CADR)

Expressed by the number of cubic meters that can purify air per unit time, it directly reflects the actual working capacity of the purifier. The larger the CADR value, the stronger the purification ability. But it’s not the bigger the better. You should make a reasonable choice based on the indoor living area and avoid “small horse-drawn carts” or “big horse-drawn carts”. Using a purifier with a small CADR value in a large room will cause the purification effect to be substandard, while a purifier with an excessive CADR value in a small room will not only cause excessive consumption of electricity, some purifiers will also release excessive ions, which will affect the health of the family. Generally speaking, for a room of 30 square meters, a CADR value of 400 cubic meters per hour is sufficient.

(2) Cumulative purification capacity (CCM)

A parameter that reflects the service life of the purifier filter. The larger the value, the lower the frequency of filter replacement.

(3) Filter

High efficiency air filter (HEPA) has basically become the standard configuration of air purifiers. The filter screen carries the key purification function. The working principle of the purifier is generally filtration, or filtration plus activated carbon adsorption

(4) Noise

 It is an important indicator that affects the experience of purifier products. Products with no higher than 30 decibels in sleep mode are better.

(5) Purification energy efficiency

 Refers to the amount of clean air that an air purifier can produce per unit power consumption. In general, the larger the value, it means that the purifier is both energy-saving and effective