This is a 3D, strongest mask that can be washed 150 times, developed in earnest by a chemical company and a textile manufacturer. It uses fabric that reduces specific viruses on the fibers by 99%. In addition, special fibers that generate ions adsorb fine dust and viruses through the adsorption power of the ions, preventing them from entering the throat and nose. It has a higher virus reduction function than non-woven fabric and is also used in medical institutions. One mask can be used for 150 days, and three masks are enough for about a year, making it very eco-friendly. *Passed the washing durability test that maintains antibacterial and antiviral effects even after 150 washes. [Product Features] ・Knit mask with antiviral agent specially coated on special fibers that generate ions ・Inactivates viruses on the surface of the mask ・Strong durability that maintains its effect even after washing more than 150 times ・UV cut material that protects the skin from UV rays ・Uses fabric with water absorption and quick-drying function ・Suppresses the growth of bacteria that cause odors, keeping it clean and comfortable even after long hours of use ・Unlike disposable masks, it does not require storage space and is ideal for disaster preparedness [Product Details] Size: M Free, for both men and women Material: Body/60% cotton, 40% polyester Ears/55% cotton, 40% polyester, 5% polyurethane *This price is for sale on Mercari because shipping and handling fees are charged. It is available at a more affordable price on our company's website and Amazon. https://www.trust-chemical.jp/shop Thank you for viewing.