Efficient Air Purification – Refresh Your Air in Minutes: With a high CADR of 130 cfm/220m³/h, our purifier effectively cleans air in large rooms, covering 1008 sq.ft. in one hour, 504 sq.ft. in 30 minutes, 252 sq.ft. in 15 minutes, and 168 sq.ft. in 10 minutes. Compact and lightweight, it’s perfect for rooms of all sizes, including bedrooms, living rooms, offices, basements, family rooms, and kitchens. Powerful 5-Stage Filtration System – Our advanced system includes a Washable Pre-filter, H13 True HEPA Filter, Novel Blue Filter, Honeycomb Activated Carbon Filter, and Cold Catalyst Filter. It captures 99.97% of air pollutants as small as 0.3 microns, such as dust, pollen, smoke, hair, and household odors. Advanced Features – ⁕Sleep Mode ⁕Timer Mode ⁕Filter Replacement Indicator ⁕3 Fan Speed Settings: Conveniently set a timer for 2, 4, 6, or 8 hours. The Filter Replacement Indicator ensures timely filter changes. Adjust to 3 fan speeds for varying environments. The unit’s handle facilitates easy movement, and dual-sided air intake maximizes pollutant capture. The touch screen adds user-friendly control. Quiet Sleep Mode – Minimal Noise, Energy-Efficient: Operate the OKSOU Air Purifier all night with Sleep Mode. Running at the lowest fan speed (only 23dB) with the display off, it cleans your air without disrupting your sleep. Sleep mode is exceptionally energy-saving, making it ideal for quiet and clean ambiance during sleep, study, work, or any peaceful moments.