Modern Design - The modern and design makes it with whatever you wear without attracting negative attention. Rechargeable - With lasting charge you can feel clean, refreshed, and whether you're at work, out at an event, or just relaxing for the whole day! Highly Effective Against Airborne Diseases - The negative ions that the produces will connect to any airborne pollutant, , and any other illness-carrying particles due to their electrostatic charge. This makes the contaminated air particles too heavy to stay airborne, forming a microscopic health to protect you for any situation. Filter Less - Now you never have to worry again about dealing with expensive and burdensome filters for your . The air purifier has an ever lasting purifier that runs on just a quick charge. Portable - You can wear it around the neck, lightweight and portable, can be used anywhere. The product does not need to add any water or liquid, beginning purify the air. Product Name : Air Purifier Working hours: 20-24H Charging time: 1H Applicable Area: 10㎡ Function : Air purification Working Principle: Negative ions colour:Silver material:ABS size:4x7x2.7cm Package Contents: 1 * hanging neck purifier Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.