TU-TESL

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Recently, we learned from China Consumer Association that it has released the comparative test results of 19 vehicle air purifiers. It was found that Panasonic's 1599 yuan purifier and skyish's 1289 yuan purifier had the lowest comprehensive evaluation of purification capacity, and all four evaluations were one star. It is reported that there are 19 samples in this comparative test, involving 17 brands at home and abroad. The samples are purchased from three online shopping platforms of Jingdong Mall, Suning e-shopping and tmall respectively. The purchase price of each purifier varies from 259 yuan to 3998 yuan, with a large difference in the price. After testing, the difference of purification ability of 19 samples is large. Among them, in terms of the clean air output ratio and purification efficiency of particulate matter, the test results of the clean air output ratio of particulate matter of 19 vehicle mounted air purifiers are 106.9m3/h at the highest and 1.2m3/h at the lowest. In this regard, cicea explained that if the purification of 3 cubic meters of interior space, the shortest sample time is about 100 seconds, and the longest sample time is about 9000 seconds, equivalent to 150 minutes. The higher the output ratio of particulate clean air is, the faster the purification speed is. In a variety of test items, the purification ability of 15 samples was significantly different, and some of them failed to achieve the declared effect. In addition, the maximum detection value of the input power of the comparative test sample is 14.6w, and the minimum is 3.0w. The input power (or rated power) of the purifier is small, which does not mean that its purification capacity is low. The purification capacity is mainly referred to the clean air volume of the product. The noise of most samples is acceptable. The results show that the maximum noise of 19 samples is between 41.5 dB and 60.6 dB. The noise value of 15 samples is lower than 55 dB, which meets the class 1 standard of environmental noise in China. According to the comprehensive evaluation results, the particle purification capacity of the purifier with the highest price in this comparative experiment was evaluated by 4 stars, while that of the sample with the lowest price was evaluated by 5 stars. At last, China Consumer Association suggested that consumers, when purchasing vehicle mounted purifier products, should check its nameplate and instructions to see whether the specific purification capacity of pollutants (particulate matter or gaseous pollutants) to be purified is indicated, and whether there is a formal test report to support it.