Smart filter for bedroom: Our 5-in-1 filter system targets pollen, dust, pet dander, volatile organic compounds, smoke and odor-H11 HEPA filter can capture 99.9% of particles, below 0.3 micron. Our lightweight device is easy to carry, allowing you to improve air quality anytime, anywhere. Our intelligent air quality sensor and touch screen display make the purifier easy to use and adjust your settings, and display air quality information. Ultra-quiet: designed for quiet operation, very suitable