January 2019, C&M proudly launched the True HEPA Meltblown filter media mainly driven by US home appliance market demand. The PP meltblown medium with initial efficiency of over 99.97% tested by 0.3micron DEHS aerosol (TSI8130A@5.33cm/sec), has an extremely low pressure drop（around 45pa) and charge decay. Only a handful MB makers in the world can make such a high efficiency MB grade.