The KN95 face mask is designed to limit unfiltered air entry with the flaps staying flushed against your face. This provides a secure seal and double protection from all sides of the face mask. The 2 layers of inner melt-blown fabric and its innovative 3D Design allows for more space between your mouth and the face mask and reduces the possibility of the wearer readjusting his/her face mask. With BFE (Bacterial Filtration Efficiency) 99% / PFE (Particle Filtration Efficiency) 99%, the product is able to block out pollution, pollen, bacteria and dust particles from our surroundings. Suitable for daily use. Safe, environmentally friendly and affordable.