Usb Hanging Neck Air Purifier Negative Ion Air Cleaner Low Noise B

2 pcs air purifier:1 x grey air purifier & 1 x white air purifierZero ozone, no radiation, safer and healthier.USB has a long charging life and can be charged at any time.Protect you from the yellow dust, es, fine dust and odor in daily life.Portable mini air purifier, can be hung around the neck, easy to carry.Can be used in daily life, subway, public transportation and tourist attractions. Solve air quality and second-hand smoke problems.The sound is very quiet during operation, it will not disturb you when you work or rest, and provide you with a quiet environment.The purifier can release up to 20 million negative ions, kill more than 99% of smoke, pollen, dust, mold spores and other harmful particles in the air.Low power consumption and high energy efficiency, purification fully meets daily needs.The negative ion generator can effectively absorb formaldehyde, solve the air quality problems around you, eliminate second-hand smoke and purify the surrounding air. Eliminate most mites, pollen, odors, smoke, cooking odors, and even PM 2.5 air pollutants.Model Number: Neck Air PurifierPower: less than equal 1WBattery: 3.7V/380mAhCurrent: 15-20mA MaxVoltage: DC3.7-DC5V/1.5Acolour:Grey + WhiteMaterial:ABS+PCPackage Contents:2 x air purifier2 x USB cableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.