Optitect Reusable Antibacterial Face Mask, MThe Optitect Antibacterial Reusable Face Mask, size Medium, is designed for superior protection and comfort. It is constructed from a special fabric infused with patented copper and silver threads, which provide high antibacterial and germresistant properties. This mask is suitable for longterm use and can be washed multiple times without losing its effectiveness. Key features include its ability to resist bacteria and germs, ensuring a high level of