Portable car home neck-mounted mini personal negative ion air purifier, designed for modern life, combining portability and efficiency. This purifier uses advanced negative ion technology to effectively remove air pollutants and improve air quality. Whether in the car, office, or at home, carry it with you and hang it around your neck to enjoy fresh air anytime. Its mini design does not take up space and provides quiet operation, suitable for various occasions. Bring a healthy air experience to you and your family, guarding every breath.