Xiaomi YU7 HEPA Filter Replacement Guide
Q: How often should the HEPA high-efficiency air purification system filter be replaced?
A: The Xiaomi YU7 offers an optional HEPA high-efficiency air purification system (free for all models if ordered before July 31, 24:00). Under normal driving conditions, we recommend replacing the filter annually or every 20,000 kilometers; specifics can be assessed by after-sales service at dealerships. The HEPA system adds two pre-filters and two HEPA filters to the standard air conditioning filter, with the HEPA filter featuring a nano-micropore protective layer for maximum filtration efficiency. Testing confirms over 99.95% filtration efficiency for particles sized 0.05~0.3μm, and over 99.99% for bacteria, fungi, and viruses like Staphylococcus aureus, Influenza A virus, and H1N1, effectively blocking external pollutants from entering the cabin. Additionally, the Xiaomi YU7 includes a deep air purification function that refreshes the entire cabin air in as fast as 35 seconds, ensuring a consistently healthy and fresh atmosphere.