Adopting advanced double cores purification technology, it can efficiently remove odors, and harmful substances inside the car, ensuring a freshly and environment, and making every trip comfortable Quiet design, with a noise levels of less than 30db during operate, even when used at night, will not affect your peaceful rest and provide a better user Compact size, light weight, for placement in cars or homes, does not take up space, greatly improving usability This purifiers supports USB power supply, which can be connecting at any time for home, car, or mobile offices use, providing you with a flexible user and easily meeting the needs of various scenarios It can release over 1 millions negatives ions per hour, effectively neutralizing in the air and improving air Not need to replace filter, saving long-term usage expenses