With the aggravation of environmental pollution and the worldwide epidemic of infectious diseases. there is a higher demand for air filtration materials to intercept fine particulate matter and capture biological pollutants. Polypropylene (PP)/polycarbonate (PC) blends were melt blown and electrospun with polytetrafluoroethylene (PTFE) on their surfaces. The PP/PC/PTFE membranes struc... https://fitnessgravesyardes.shop/product-category/right-heart-rate-grip/