An air purifier with high filtration efficiency must ensure that the indoor air reaches a certain air exchange rate, that is, the fan built in the air purifier is required to have a certain air volume. Efficient purification effect comes from strong circulating air volume, and the girl is looking for you. The technical parameters of the oil fume purifier, especially the air purifier with fan, require the air purifier to have good air circulation, and the motor is the heart of the air circulation system. The standard requires the purifier to filter the whole room air more than five times in 1 hour, and once every 12 minutes on average. The air volume is too small, and harmful substances cannot be fully decomposed. Excessive air volume is obviously a waste. So generally speaking, for a room with a height of 3m and an area of 20m2, it is best to choose an air purifier with an air volume of 60m3/h ... so as to achieve the real purification effect.

(2) Purification efficiency index

The purification efficiency (CADR) value is the main index to evaluate the technical parameters of oil fume purifier. The higher the numerical value, the greater the clean air output ratio of the air purifier and the higher the purification efficiency of the purifier. When consumers buy air purifiers, they must look at the purification efficiency. Consumers with general needs should choose products with CADR value above 120. The higher the purification efficiency value, the higher the purification efficiency of the purifier. If there are high requirements for indoor air quality, it is necessary to choose products with a purification efficiency value of more than 200.

(3) Energy efficiency ratio index

Energy Efficiency Ratio (EER) is an important index to measure the purification performance and power consumption of air purifiers in the national standards of air purifiers. The higher the value, the more energy-saving the air purifier is, which is in line with the concept of environmental protection. Technical parameters of air purifier and lampblack purifier with good energy efficiency ratio The energy efficiency ratio of Chongqing Oupai water purifier should be greater than 3.5 when the power grid planners of this bureau work overtime. However, we should pay attention to whether the selected purifier has a fan, because the air purifier with a fan has higher purification efficiency, and because it needs to consume energy, it is more energy efficient than the purifier without a fan.

(4) Safety indicators

In addition to the safety indicators of general household appliances, an important safety indicator of air purifiers is the ozone safety indicator. Ozone has been proved to be related to health hazards in indoor air environment, and its concentration is strictly limited, and strict detection methods have been formulated. Some air purifiers using electrostatic purification, ultraviolet lamp disinfection and negative ion generator may produce ozone when working, and it is acceptable if the ozone index is controlled within a safe range.