Xiaomi Eco-chain launched a new anti-pollution air mask. Effective block the dust and pm2.5 outside. Xiaomi Smartmi Anti-Pollution Air Sport Mask Block PM2.5 Haze Anti-haze Adjustable Ear Hanging 3D Design Comfortable with Ventilating Valve. Anti-Dust Women Men Face Mouth Masks with BREATHABLE TPU, Designed for meeting different demands on various conditions and relieving the suffocating feelings. Nano-fiber electret filtering technology, the air filter is apparently able to achieve PM2.5 filtration efficiency of up to 97%.

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