Modern Design - The contemporary and compact design seamlessly integrates with your attire without drawing any unwanted attention. Rechargeable - With our long-lasting battery life, you can feel clean, refreshed, and protected whether you are at work, attending an event, or simply relaxing at home throughout the day. Highly Effective Against Airborne Diseases - The negative ions created will attach to airborne pollutants, bacteria, and other harmful particles due to their electrostatic charge. This makes the contaminated air particles too heavy to remain airborne, forming a microscopic health shield to protect you in any situation. Filter Less - You no longer need to worry about costly and cumbersome filters for your air purifiers. This air purifier features a durable purification system that operates on just a quick charge. Portable - You can wear it around your neck; it's lightweight and portable, suitable for use anywhere. The product does not require the addition of water or any liquid to begin purifying 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: 2 * hanging neck purifier Only the above package content is included; other products are not included. Note: Light and different displays may cause the color of the item in the picture to differ slightly from the actual item. The allowable measurement error is +/- 1-3cm.