Compatible Models: This silver ion module accessory is precisely designed For Xiaomi Mijia M40S OV31CN Robot . It fits perfectly into the original water tank system, ensuring stable performance and reliable operation without affecting normal cleaning modes or suction power. High-Quality Materials: Made from , high-quality, durable materials, this silver ion module ensures long-term stable output and reliable purification performance. It helps purify and clean stains in water, reduces scale buildup in the tank, and is widely suitable for household daily use to maintain a healthier cleaning environment. Improve the Cleaning Effect: During each cleaning cycle, the silver ion module continuously releases ions into the floor cleaning water and waste water tank. This helps inhibit impurities, optimize the mopping process, and enhance overall cleaning efficiency. Efficient Purification: The silver ion module continuously releases active silver ions into the water, helping to purify dust and fine particles in the water flow. Easy to Install: The silver ion module is designed for quick, tool-free installation and replacement, allowing users to easily complete maintenance at home. Applicable model Compatible: For Xiaomi Mijia M40S OV31CN Robot Color: As Shown Material: ABS Specification: 2 pieces Package Contents: 2*Silver ion module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.