1. High-Efficiency Filter SystemThe air purifiers with HEPA filter which has 3 stage filtration system, efficiently captures airborne contaminants as small as 0.3 microns and air pollution of PM2.5, dust, odors, smoke, pollen, and pet dander provided a healthier living space.2. With Aromatherapy DiffuserBuilt-in essential oil sponge, you can add a few drops of your favorite essential oil(not included). The aroma will diffuse throughout the room with air movement. Gentle fragrance helps you relax and sleep.3. Quiet Sleep Design air purifier using the latest noise reduction fan blade design principle, ensure the air purifiers run at a noise level in low-speed mode as low as , which is for the soothing indoor environment. Suitable for home, bedroom, and office.4. Elegant and sleek DesignThis small air purifier can purify the air 5 times per hour in a room of 215sq.ft/20m effectively improves indoor air quality which can help you to breatheair at home. The looks elegant and sleek, which fits where in your home and blends in with your decor.