Ionization function: Diffuses negative ions into the air to remove dust particles. Double filter system: Includes a HEPA filter and an activated carbon filter. HEPA filter: Removes 99.97% of air impurities, such as dust particles, pollen, smoke, etc. Allergy relief: Reduces symptoms of allergic rhinitis (pollen) and dust mite allergies. Air purification: Removes dust, pollen, bacteria, viruses, and other pollutants. Activated carbon filter: Helps remove bad odors, such as those from tobacco, pets, ammonia, gasoline, etc. Pre-filter: A washable filter that captures larger dust particles, such as hair. LED lighting: Operates with LED lighting for easy visibility. Three speeds and night mode: Offers adjustable ventilation speeds and a quiet night mode for nighttime use. For spaces up to 20 m² / 50 m³: Suitable for small to medium-sized rooms. Clean Air Delivery Rate (CADR): 120 m³/h, indicating the volume of purified air delivered by the device per hour. Smart filter indicator: Indicates when the filter needs to be cleaned or replaced. Noise level: 61 dB during use. Compact dimensions: 21 x 21 x 31 cm, ideal for small spaces.