1. Compatible with Xiaomi air purifier 1 & air purifier 2. 2. 3 kins of strainer in total. Resisting particulate matter and absorbing peculiar smell and other harmful substance effectively. 3. Compared to the standard version, this item adds accelerant material, and hence has stronger decontamination capacity to absorb formaldehyde and PM2.5, decompose then into carbon dioxide and water. 4. Easy to apply it to your Xiaomi air purifier 1 or air purifier 2. Please note that you'd better to replace it twice a year. 5. Material: PP, PET, Accelerant, Active Carbon.
