[High-efficiency air purification] The air purifier is equipped with ultraviolet lamps and HEPA filters. It can remove 99.9% of dust, pollen, viruses, pet dander, smoke and household odors in indoor air. It is very effective in removing and smoking and cold , letting you breathe the freshest air every day and refresh your spirit every day [3 different colors of indicator lights] Air quality is automatically detected within 3 minutes after the car air purifier is turned on: different colors different air quality, red light means poor quality air quality, yellow light means normal air quality, green light means good air quality. (The purple light in the purifier is ultraviolet light, please don't aim at your face) [Ultra Quiet Air Purifier] The sound of this air purifier is only 35 decibels. Super quiet and quiet air duct design, 360 degree in and out of the wind while bringing in fresh air and creating a calm and relaxing environment [Precise design] The appearance of the air purifier is very simple and generous. It can be used not only as an air purifier, but also as an ornament. It is small and very convenient to carry. It can be used by plugging in the USB cable, and it is very easy to use Convenient, suitable for different scenes such as cars, hallways, study rooms, bedrooms, offices, kitchens, etc. [Warm and intimate gift] This air purifier has an elegant and generous appearance and is easy to operate. It is an for smokers, seasonal cold patients and pet owners. (The air purifier should replace the filter elements according to the use time and the use environment) Colour:black Material:ABS Size:75 x 75 x 155mm Package Contents: 1 * Air Purifier 1 * USB Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.