Features: *Effective Air Purification: The Home Black Filter effectively eliminate pollutants and dust in the air, such as dust, pet dander, smoke, and odors, ensuring a clean and fresh environment for your room or office. *The product adopts an oval appearance design, which is simple and beautiful, easy to operate, plug in and play, small in size, and easy to carry. *The product adopts USB plug for intelligent power supply, which is suitable for a variety of interfaces and can be used anytime, anywhere *The product adopts a strong air system, and the DC air channel is unobstructed, which can effectively absorb indoor formaldehyde and odor. *The product uses activated carbon filter cotton mesh, with the blessing of blue light technology, effective filtration, strong purification, comfortable experience, and a real breathing guard Specifications: *Product Name:Home Black Filter *Material: ABS Shell *Size: 12.5*8cm *Color:Black Filter air volume: 50 m³/h Noise: about 40 (dB) How it works: negative ions Function: in addition to formaldehyde, air purification Power supply: USB Rated frequency: 50 (HZ) Use environment: suitable for vehicles, desks and other places with relatively small space Control method: plug and play, without any operation Voltage: 5V Power: 5W Applicable area: 20-50 square meters Filter type: composite filter Package Content: 1*Filter (with 1 filter inside) 1*USB data cable (the data cable is connected with the machine) 1*Packing in a color box (there are English operating instructions on the color box) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of high quality material, durable and practical to use Brand new and high quality Good function and reliable to use We will ship it ASAP,when you place the order We provide perfect customer service, you can buy with confidence. If you have any questions about our products, you can feel free to contact us.