Xing Yan, Chongsong, 3M 900 1, 3M 950 1C, Honeywell 950V, Honeywell 80 1V, classic top grade, EPC.
Experience: Xing Yan has the best effect, but it is slightly oppressive compared with Chongsong; Because of the design of internal silica gel frame, Chongsong has large space, small expiratory resistance and a slight but non-irritating taste; 3M is really the mainstream choice, with excellent cost performance; The model tested by Honeywell is slightly worse than 3M, but it is still good. In addition, EPC and classic top grades are also very eye-catching.
Average performance
The result of Xiaomi mask was a little unexpected, so we changed a filter and tested it again. It seems that the silicone shell really fits the face, and the tightness should be good. But strangely, the actual filtering effect is not ideal. We speculate that it may be due to the gap between the internal filter element and the silicone shell.
In fact, our evaluation of Xiaomi products is objective, and we also have certain expectations for it. The material is not bad and the design is very eye-catching, but I don't know why the actual effect is not satisfactory. I believe there is still room for improvement.
Poor performance
Biwahu mask, Japan Baiyuan, Vogel Musk, Netease Yahua, KOWA Sanyuan, Rudy, Kobayashi Pharmaceutical.
PITTA mask, Baiyuan, Kobayashi Pharmaceutical and KOWA look the same as medical masks, and the test data are the same. The quality of the mask is really good, but the effect of preventing PM2.5 is still too weak. After all, there is specialization in the industry. There are also some masks that have reached a high aesthetic standard, but the quality still stays at the level of "urban-rural fringe".