- 4 layers disposable protection safety 3D ergonomic particulate respirator - Certificates: KF94, FDA, ISO-9001, ISO-14001 - FDA Class II & Class I, Excellent Liquid Resistance - BFE 99%>= Good breathability - Blocks more than 95% of PM 2.5 particles - 3D ergonomic design for various face shapes - Adjustable noes wire for anti-fogging, adjustable earloops included - Available sizes: For child (S), for baby (XS) - Standard packaging: Individual Korean retail packaging - Origin: South Korea (Rep. of Korea)