After watching the teardown live stream, I learned that the Xiaomi YU7 has a triple-filter air purification system. What is special about it?
The Xiaomi YU7 is equipped with a triple-filter air purification system, which includes two standard air conditioning filters, two large-sized thin pre-filters, and two HEPA filters: The pre-filters are mainly used to intercept larger diameter particles; after the pre-filters are the HEPA filters, which can efficiently filter small-diameter particles. The setting of the pre-filters also serves to protect the HEPA filters, helping to extend their service life.
The HEPA filter in the Xiaomi YU7 has extremely strong filtration performance. For easy understanding, it can be compared with common N95 masks: N95 masks have a filtration efficiency of 95% for particles with a diameter of 0.3 microns, while the HEPA filter in the Xiaomi YU7 has a filtration efficiency as high as 99.95% for particles of the same size. Its filtration performance exceeds that of N95 masks, equivalent to wearing a "super-sized high-efficiency protective mask" for the vehicle. In addition, HEPA filters are particularly suitable for people prone to allergies, effectively improving indoor air quality, making travel safer for users with sensitive constitutions, and giving more peace of mind when taking children out.
It is worth mentioning that the Xiaomi YU7 recently won the title of "Five-Star Healthy Car", receiving the highest rating in three evaluation dimensions: fresh air, health protection, and green travel. Among them, the highest ratings in fresh air and health protection mean that the Xiaomi YU7 performs excellently in interior materials: for example, low content of harmful volatile substances such as formaldehyde, low allergenic risk in frequently contacted parts such as seats, and the adoption of an efficient air conditioning filtration system. In the dimension of green travel, this evaluation is determined by testing the vehicle's range achievement rate at different temperatures and speeds, and the Xiaomi YU7 also received the highest five-star rating. Previously, the Xiaomi SU7 also received the highest ratings in these three health evaluations.