If you are looking for a high quality portable air purifier for bedroom that is economical and safe to use at the same time, our air purifier is the best choice. Processed with an effective 3-stage filter system: Removes at least 99.97% of dust, pollen, smoke, odors, pet hair, filters particles up to 0.3 microns and air pollution of PM 2.5. Powerful: 360° purification performance, enjoy the cleanest and freshest air. Extremely quiet: Upgraded level to a low noise version so you can sleep peacefully. Compact size: This mini air purifier is designed for use in bedroom, home office, office, small spaces. Easy to use: With just one touch of a button, you can switch between two fan speed levels. Intelligent filter change reminder: when the Air filter works up to 'At 1500 hours the light on the "On/Off" button flashes, the filter needs to be replaced.