Certificates: CE, ISO13485, ISO 9001, TYPE II R, CENTEXBEL Product Performance * The product performance adopts ultra-fine electrostatic melt-blown fabric, EShot air-free, and PPanti sticking nonwoven fabric, forming four layers of the filter layer, which is more effective in filtering harmful substances, meeting the national standard KN95 level. * The 3D three-dimensional shape is designed according to the human face shape engineering to ensure the tightness, increase the breathing volume of the mask, greatly improve the permeability, and make wearing and breathing more comfortable.