3-Stage Filtration: Equipped with True HEPA 13 filter, a prefilte and activated carbon filter. Air purifier AP-M1 can effectively filter out small particles such as dust, smoke particles, pollen, pet dander. Simply turn it on to create a space with clean and fresh air. The 360° Air Inlet Outlet Design ensures efficient air circulation, unlike traditional air purifiers with only one-sided inlet, this design capturing particles from all directions for quick filtration. With 4 fan speed modes, you can choose the fan speed based on air quality, making it adaptable to varying needs.