Material: Three-layer non-woven fabric and meltblown fabric Size: Suit For Adult Mask Style:Ear type Package Included:20pcs 5-layer professional structure: our 3D folded KN95 disposable mask can effectively filter 95% of oil-free particles in the air, prevent fine dust, solid and liquid particles, prevent pm 2.5 air pollution, smoke, car exhaust, pollen, etc., suitable for home and professional use , Indoor or outdoor use. For your health structure: The 3D structure provides you with enough breathing space, allowing you to breathe fresh air, and reduces the gap between the mask and the face. The mask is suitable for various face shapes. MATERIAL DESCRIPTION: Melt-blown fabric: The fibre diametter is between 1-5 mu. It has excellent filter efficiency,shielding,aciabaticity and oil absorbency. Nose strip: External aluminium bridge strip. 'ts safe, environmental friendly and heat-resistingwith good shaping effect.Good shaping effect Ear loops: chinlon + spandex, 2.5-3mm in diameter,good tensile property, soften as cotton