Feature:1. [High-Efficiency]Effectively removes PM2.5, smoke, pollen, and other air pollutants in the air by releasing 20 million Negative Ion.2. [Easy to Use]Just press the button to enjoy the fresh air. Negative Ion can help promote metabolism, activate cells, refresh your mind, and relieve symptoms of motion sickness.3. [USB Rechargeable]The mini portable air purifier can charge by any USB port and can last for about 48h with a full charge.4. [Low Noise]Designed on the base of the principle of hydrokinetics to operate below 20dB which will not affect your work.5. [Great Gift]The air purifier makes a great and valuable gift for your friends and family.Specification:Description:This personal air purifier can fresh your personal space about 10 anytime anywhere. Operates at a whisper-quiet level to contribute to a peaceful environment. Small and portable, you can use to purify the surrounding air in your daily life.Features:[High-Efficiency]Effectively removes PM2.5, smoke, pollen, and other air pollutants in the air by releasing 20 million Negative Ion.[Easy to Use]Just press the button to enjoy the fresh air. Negative Ion can help promote metabolism, activate cells, refresh your mind, and relieve symptoms of motion sickness.[USB Rechargeable]The mini portable air purifier can charge by any USB port and can last for about 48h with a full charge.[Low Noise]Designed on the base of the principle of hydrokinetics to operate below 20dB which will not affect your work.[Great Gift]The air purifier makes a great and valuable gift for your friends and family.Specifications:Color: Pink;Black (Optional)Material: ABS, PC, SiliconeStyle: CuteCharging time: 1hWorking time: 48hBattery: 1*3.7V, 600mAh Lithium BatteryNoise: 20dBNegative ion concentration: 20 million/cubic meterApplicable area: 10Occasion: Home, Travel, Office, Car, etcItem Size: 8.9*5.6*2.4cm / 3.5*2.2*0.94inchPackage Size: 10*7*4cm / 3.93*2.75*1.57inchPackage Weight: 70g / 0.15lbPackage List:1 * Portable Air Purifier1 * Strap1 * USB Cable1 * Silicone Shell1 * User GuidePackage List:1 * Portable Air Purifier1 * Strap1 * USB Cable1 * Silicone Shell1 * User Guide