Turn any mask into an anti-virus mask!! Mask protector with over 99% antibacterial and antiviral effect, washable 50 times for comfortable use. 【Etak certified! Made in Japan for peace of mind!!】 All fabric and sewing are done domestically. 【99% inactivation of specific viruses on the fabric】 Using fabric that has been processed with "Etak," an antibacterial agent with proven safety, to inactivate 99% of specific viruses and suppress the growth of specific bacteria for a long time. 【The highest peak of antiviral function: Ion & Static Electricity Adhesion】 A mask protector made of high-density twill material coated with a negative ion generator, based on antibacterial and antiviral fabric (Clenze) used in hospital bed sheets and white coats. It uses ion adsorption technology to adhere nano-level viruses that pass through the gaps in the fibers to the fabric, preventing them from entering the throat and nose. 【Economical with 50 washes per piece】 Maintains antibacterial and antiviral effects even after 50 washes. This product has passed the virus inactivation performance test after 50 washes. 《Product Details》 Size: One size Colors: White, Black, Navy, with logo (Please comment with your desired color) Material: Body/Polyester 65% Cotton 35% ※This product is quality-coated. The coating will be removed after washing, and the ion adsorption performance will be activated, so please wash it once before use. We are selling at this price because of the shipping and handling fees on Mercari. It is even more affordable on our own website, Amazon, etc. https://www.trust-chemical.jp/shop Thank you for viewing.