MKEnX's meltblown nonwoven fabric is the critical element of face masks that filters various particles and shields viruses. It also prevents bacteria from infiltrating through the layers. Features â??Made from polypropylene (PP) â??Filtration Efficiency: BFE (25g/m�²) > 99% â??High level of breathability: DP (25g/m�²) < 2.5mm H2O/cm�² â??Available in 4 colours and fully customisable â??SGS certified Applications Mostly used for mask materials, welcome to cooperate and develop other functional products