[KN FLAX] 4 Layer Filter Face Mask (Pack of 20) - High Quality??PREMIUM QUALITY AND QUALITY CONTROL - Manufactured by the company specialized in mask using High Quality Filter (MB) created by the innovative technology - Our manufacturer, Kyungin Flax Co.Ltd., is known for their excellent technical skills and quality control to proudly introduce the very best products to you. ??ANTI-TROUBLE SKIN AND EASY BREATHING - Made with Eco-Friendly fabric for Anti-Trouble Skin and structured to let you breathe more comfortable and easy with. ??GREAT SAFETY - 4-Layer Protection with high quality MB filter - Advanced Quadruple Filtration System and Innovative Melt Blown techniques block up to very tiny dust particles. ??COMFORTABLE ERGONOMIC DESIGN *Built with Aqua-Trans Technique : With High Moisture Transferability technique, our masks absorb moisture quickly, giving you a fresh fit even if worn all day long and prevent fogging on your glasses.*Tri-Folding Stereoscopic Design : Structured to cover from your nose to chin, and from your left to your right jaw, our masks give you better protection and are less smeared from foundation, lipstick and etc. ??Made in South KOREA ? NOTE: The date printed on the package is manufactured date, NOT an expiration date. ???? means ?Manufactured? & "??" means "Expired Date" ?