Description: 100% Brand new Type:Electric Air Purifying Masks Color: Black Material: grade polyester+soft silica gel of food grade Package Included: 1X Electric Air Purifying Masks Feature: The mask uses filter elements of grade and high quality polyester, soft silica gel of food grade ensure no exotics and no damage and comfortable wear. Electric intelligent air purifying technology, produce air with high effectivity and actively deliver fresh air; HEPA 99% strong filtering effect of medical grade; Right inlet and left outlet make sure air in and out orderly, effectively cycling. Fit face in 3D and keep good sealing; It has large space within mask for air cycling. Built-in 400mA safety li-battery can work for 4-6 hours. Charging time only need about 30 minutes. Battery life have 3 years at least. Protection against gases, smells,PM2.5, pollen, second smoke and pathogens such as viruses and bacteria. It can be used for Running / Travel / Dust / Air Pollution / Motorcycle / Sport. Notice: 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 deviation for the measurement data. 3.Please allow 1-3cm error If you have any questions, please contact us. Wish you have a happy shopping time!