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source:Optimization dedicated release time:2021-12-14 Hits: Popular:aromatherapy diffuser direct sales
First, the fan air volume index. High-efficiency filtering air purifiers must ensure that the indoor air reaches a certain number of air changes, that is, the built-in fan of the air purifier must have a certain air volume. Under normal circumstances, for a room with a house height of 3 meters and an area of about 20 square meters, it is better to buy an air purifier with an air volume of about 60 cubic meters per hour. Only in this way can the real purification effect be achieved.
Second, the purification efficiency index. The national standard of purification efficiency (CADR) value is the main indicator for evaluating the performance of air purifiers. The higher the purification efficiency 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 value of purification efficiency. Consumers with ordinary needs should choose products with a CADR value of 120 or more. The higher the value of purification efficiency, the higher the purification efficiency of the purifier. There are higher requirements for indoor air quality, so you need to choose a product with a purification efficiency value of 200 or more.
Third, the energy efficiency ratio index. Energy efficiency ratio is an important indicator for measuring 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. This indicator is in line with the concept of green environmental protection. An air purifier with a good energy efficiency ratio should have an energy efficiency ratio greater than 3.5. But pay attention to whether the selected purifier has a fan, because the air purifier with a fan has a higher purification efficiency, and because of the energy consumption, the energy efficiency is higher than that of a purifier without a fan.
Fourth, 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 the indoor air environment, and its concentration is strictly limited and strict Test method. Some air purifiers that use electrostatic purification, ultraviolet lamp disinfection and negative ion generators may produce ozone during operation. If the ozone indicator is controlled within a safe range, it is acceptable.
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