High-quality materials: high-quality materials, safe and environmentally friendly, more durable. Remove odor: air purification filter, in addition to formaldehyde odor, purification of suspended matter. Effective filtration: efficient filtration of particulate matter such as PM2.5, ash layer/hair, pollen/fines etc. Safe: choose high-efficiency filter material to ensure your safety and confidence. Applicable models: for millet 1 generation 2 generation pro air purification filter. Purple version: sterilization, disinfection, mildew prevention Material: composite material Purple color Package content: 1 x air purifier filterOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.