(1) Air volume index of fan

An air purifier with efficient filtration 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. The efficient purification effect comes from the strong circulating air volume, and the girl is looking for you. The technical parameters of the oil fume purifier, especially the air purifier with a fan, require the air purifier to have good air circulation, and the motor is the heart of the air circulation system. The standard requires that the purifier needs to filter the air in the whole room for more than 5 times at the 1 th hour, and it needs to be filtered 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. Therefore, in general, for a room with a height of 3m and an area of 21m2, it is best to choose an air purifier with an air volume of 61m3/h.. Only in this way can the real purification effect be achieved.

(2) purification efficiency index

purification efficiency (CADR) value is the main index for evaluating the technical parameters of oil fume purifier. The higher the value, the higher the clean air output ratio of the air purifier and the higher the purification efficiency of the purifier. When purchasing an air purifier, consumers must look at the purification efficiency value. Consumers with ordinary needs should choose products with CADR value above 1.21. The higher the purification efficiency value, the higher the purification efficiency of the purifier. If there are high requirements for indoor air quality, they need to choose products with purification efficiency value above 211.

(3) Energy efficiency ratio indicator

Energy efficiency ratio is an important indicator to measure the purification performance and power consumption of air purifiers in the national air purifier standard. 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 oil fume purifier with good energy efficiency ratio The energy efficiency ratio of Chongqing European water purifier should be greater than 3.5 when the grid planners of this bureau work overtime. But pay attention to whether the selected purifier has a fan, because the air purifier with a fan has higher purification efficiency, and at the same time, because it needs to consume energy, the energy efficiency is higher than that of 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 ozone safety indicators. Ozone has been proved to be related to health hazards in indoor air environment, and its concentration is strictly limited and strict testing methods have been formulated. Some air purifiers using electrostatic purification, ultraviolet lamp disinfection and negative ion generator may produce ozone when working, which is acceptable if the ozone index is controlled within a safe range.