The Black+Decker ensures clean and pure indoor air. The double filter system is suitable for rooms of approximately 20 m² (CADR 60 m³). It consists of a pre-filter and an EPA 12 filter that can filter out up to 99.95% of pollutants. The Black+Decker air purifier filters dust, hair, bacteria, pollen, and allergens for a healthy and pure environment. Choose from three speeds and a night mode. The night mode is very well suited for your bedroom or children's room; at just 19 dB(A), it is ultra-quiet and won't disturb your sleep. To ensure optimal performance, the air purifier features a filter replacement indicator.