From Xiaomi
Product name: Xiaomi Smart Air Purifier 4 Pro Product model: AC-M15- SC Product dimensions: 275×275×680 mm Net product weight: Approx. 6.8 kg Effective coverage area: 35-60㎡ Noise: ≤65dB（A） PM CADR: 500m³/h Particle Purification Efficiency: High For Xiaomi warranty service and support Service email: service.sg@support.mi.com Address: 229, Lavender Street, Singapore 338778 Working Hours: Tuesday – Saturday: 10am – 7pm (Sunday, Monday, Public Holiday – Closed) Service Center Number: 85814530 Call Center Number: 8008528474