【High Efficiency Air Purifier】: Air purifier is equipped with H13 grade HEPA filter element, which can effectively remove 99.97% of particles as small as 0.3 microns in the air to achieve high-efficiency purification. The built-in negative ion generator can effectively remove smoke and dust. 【Portable and Convenient HEPA Filter】: Air filter is compact and compact, measuring about 6.8x6.8x13.3cm. 360-degree air intake, rapid circulation of clean air, equipped with a data cable, easy to use and carry out, let fresh air around you all the time. 【Unique and Romantic Air Purifier】: Purifier has a romantic starry atmosphere light, which allows you to have a comfortable and romantic atmosphere while purifying the air, which is conducive to relaxing emotions and creating an ideal indoor sleeping environment. 【Easy to Use and Healthy and Environmentally Friendly】: Air purifier with sleeping HEPA is removable, simple and practical, with built-in aromatherapy box and aromatherapy cotton, DIY