COOCHEER Air Purifier with HEPA Combination Filter & Activated Carbon Filter and Car Timer, 99.97% Filter Performance Perfect and CADR 258 m³/h, for Allergy, Home, Smoking Room High performance: thanks to its high cleaning performance CADR (Clean Air Delivery Rate) of 152+ CFM (258 m³/h), the air purifier manages to completely clean a room of 20 m² within a few time. Perfect for everyday use at home, office, kitchen and other indoor spaces Removes 99.97% of airborne allergens: 3-in-1 genuine HEPA filter, pre-filter and ion filter, reliably removes numerous pollutants such as pollen, dust, bacteria, viruses, mould, smoke, fine dust, ultra-fine particles up to a size of 0.03µm and even gases and odours from the air Save energy: the air purifier stands multiple air levels and has an optional automatic timer that shuts off the air filter after 1, 2, 4 or 8 hours of continuous operation to increase energy efficiency No noise: noise level is only 30 dB. In sleep mode, the air is silently disinfected to ensure a quiet indoor climate and a restful sleep. Quiet works all night, easier breathing and restful sleep. SMART PM2.5 SENSOR This air filter is equipped with a smart PM2.5 sensor and measures the air quality of your room in real time in three colors (green, yellow, red). With the auto mode, the air quality can be monitored and the fan speed can be automatically adjusted using the advanced air quality sensor system Description Details: CADR: 152 CFM (258 m³/h). Room coverage: up to 36 m². Power supply: 110 V / 60 Hz. Rated power: 45 W. Noise level: <61 dB (sleep mode <30 dB). Dimensions: 30.2 x 15 x 47 cm. Net weight: 3.8 kg. Features and functions: Simple and elegant design Sleep mode. Pre-filter: blocks hair, paper and other particles. Antibacterial layer: it can effectively stop the production of bacteria and reduce the diseases caused by air. HEPA filter: removes smoke, bacteria, pollen and particles from the air. Activated carbon filter: removes formaldehyde and benzene