High-tech-health products: portable air purifiers that do not contain any harmful substances and chemical components, release ions anytime and anywhere, ,absorb suspended particles in the air, eliminate all kinds of smoke, pet odors and other bad odors, giving you healthy fresh air around . Health anytime, anywhere: Mini and portable design, rechargeable, unlimited cycle use, and 27-hour battery life, protect your health anytime, anywhere. No matter if you are traveling outdoors, climbing, outdoor sports or gathering indoors. It can create a clean environment for you and let fresh air accompany you forever . More health benefits: Using it continuously for a long time can make you get better sleep quality, reduce headaches, and help you focus . Eventually your immune system will be stronger and your body functions will be improved! Exquisite fashion items: The clever necklace design can not only bring you fresh air, but also let you match your daily wear, which is perfect!