Product attribute Name: sterilization card Specifications: one piece Action time: 60 days after unpacking Shelf life: 3 years Main ingredients: Chlorine dioxide slow-release agentProduct Description 1. Help eliminate planktonic bacteria, flu and other viruses and reduce the chance of infection or infecting others After putting on, eliminate bacteria and viruses within 1 meter of the body. 2. Effectively stop viruses, fine suspended particles, pollen, dust, etc. Suitable for babies, children, pregnant women, the elderly and other groups.Warm reminder 1. Please remember that due to the lighting effects, the monitors brightness / contrast settings / etcs, there will be some slight differences in the color of the pictures and the actual items. Measured by hand, deviations of 1-2 cm are possible. 2. Please leave us a message if you have any questions. We will respond and offer you our best service.