The VK RespiPro Atemschutz Maske is a reusable face mask that filters out 99.7-99.9% of viruses, making it a great option for anyone looking for a reliable and long-lasting protection. Its unique nanofiber membrane and copper oxide coating work together to block viruses and provide a comfortable fit, thanks to the adjustable nose clip. With a lifespan of up to 30 hours, this mask is perfect for people who need to wear it for an extended period, such as healthcare workers or individuals in high-risk environments.