Genuine KF94 disposable protective face mask approved by Korea Ministry of Food and Drug Safety. Filters out at least 94% of airborne particles with a size of 0.4 microns. 4 Layer protection structure protects your respiratory system from infectious sources. Ergonomic three-dimensional structure for maximum comfort and sufficient space for breathing. Adjustable nose-clip reduces eyewear fogging and ensures a good face seal over a range of face sizes. Stretchable earloop for fast donning and doffing. The individual packaging offers greater hygiene and maintenance and prevent any contamination. One size fits most adults. Manufactured in a CE certified and FDA registered facility in Korea.