This portable air Purifiers for car comes with USB C cable, which can be power by car charging adapter and computer Enjoy a quiet, peaceful environment, perfect for bedrooms and work space this air cleaner is so quiet, you can run it throughout the night and sleep well The air Purifiers 2 adjustable fan speeds to meet your specific need Ensuring a peaceful environment ideal for sleep or working It can filter,, improve air, and protect the health of you and your family Negatively ions can purifying the air, provide nice indoor environment, help people relax and improve