Anionic: characterized in that the air cleaner can generate negative ions. Anion be used to enhance the body's metabolism and homeostasis. Maximum efficiency: our personal portable air purifiers can release as many as 5 million negative ions, thereby reducing energy consumption and energy efficiency. Mini portable: you can wear it around the neck, lightweight and portable, can be used anywhere without noisy. The product does not need to add any water or liquid, beginning purify the air. . Rechargeabel: it remains quiet during operation, it is a very effective technique, a charging time of 10 hours run. Easily charged via a usb cable. . Gift of love: stylish design make your surroundings more colorful, more fun. Perfect gift idea for family and friends.