The breathable face mask mask 3 ply is composed of non-woven fabric and meltblown fabric, three-layer high-efficiency filtration, in accordance with the GB/T32610-2016 standard, the filtration level reaches FFP2 level, skin-friendly fabric, good breathability and waterproof performance, and production conforms to European Union standards. It has the functions of preventing bacteria, dust, haze and air pollution, etc. https://www.hopehealthmask.com/p...isposable-face-mask.html