General description This home air purifier features a high-efficiency double-layer filter with 3-stage filtration, effectively capturing 99.97% of dust, pollen, smoke, and pet hair. It operates quietly at a noise level of only 32 dB, making it ideal for bedrooms, cars, and kitchens. The purifier is USB powered and includes a night light with two brightness settings, enhancing its functionality. Technical specifications Filtration efficiency: 99.97% Noise level: 32 dB Power consumption: 2W Modes: Sleep and Natural Usage The air purifier features two operational modes: Mode 1: Sleep - emits dim light and operates at low speed. Mode 2: Natural - features ambient light and operates at high speed. It also includes an aromatherapy cup at the bottom, allowing users to add essential oils for a pleasant scent. Other information Remove the plastic bag from the filter before use.