Engineered for small to mid-sized rooms, the Xiaomi Smart Air Purifier 4 Compact is designed to deliver high-performance filtration in a compact, unobtrusive chassis. With a Particle CADR of 230 m³/h, it refreshes air for coverage of 16–27 m², making it suitable for bedrooms, offices, and nurseries. The unit can be placed on a desk or standing on the floor, letting you relocate it wherever clean air is needed. Its filtration system uses a pre-filter, true HEPA element, and activated carbon layer to target airborne particles. The purifier is designed to remove 99.97% of airborne particles down to 0.3 μm, helping address dust, dander, pollen, and odors as stated in the original description. TÜV Rheinland allergy care certification is listed for allergen reduction, supporting those with sensitivities. You can control and monitor performance remotely using the Mi Home/Xiaomi Home app, or use the intuitive panel to switch into Auto Mode. In Auto Mode, onboard sensors gauge air quality and adjust fan speed, while a four-color LED ring provides at-a-glance feedback on pollution levels. Key Features • Designed for small to mid-sized rooms • Particle CADR: 230 m³/h • Refreshes up to 27 m² of air • Suitable for bedrooms, offices, and nurseries • Three-stage purification suite: pre-filter, true HEPA element, activated carbon layer • Eliminates 99.97% of airborne particles down to 0.3 μm • Helps remove dust, dander, pollen, and odors • TÜV Rheinland allergy care certification • Remote control and monitoring via Mi Home/Xiaomi Home app • Intuitive panel with Auto Mode • Onboard sensors gauge air quality and adjust fan speed • Four-color LED ring for pollution level feedback • Compact form factor supports desktop and floor placement • Auto Mode uses integrated PM sensor • Four-zone LED indicator communicates current PM levels at a glance Specifications • Model: AC-M18-SC • Coverage Area: 16–27 m² • Particle CADR: 230 m³/h • Dimensions: Φ 220 × 355 mm • Weight: ~2.2 kg • Noise Level: ≤ 60 dB(A) • Filter Efficiency: 99.97% at 0.3 μm
