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 virus reduction function that surpasses non-woven fabric and is used in medical institutions. One mask lasts 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 washing 150 times. [Product Features] ・Knit mask with antiviral agent specially coated on special fibers that generate ions ・Inactivates viruses on the mask surface ・Strong durability that maintains its effect even after washing more than 150 times ・UV cut material that protects the skin from ultraviolet 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 requires no storage space and is ideal for disaster preparedness [Product Details] Size: M Free (Unisex) Material: Body/60% cotton, 40% polyester Ears/55% cotton, 40% polyester, 5% polyurethane *This price is for sale on Mercari due to shipping and handling fees. 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.