FORWARD Brand PJ series crushed coal based activated carbons bear fully developed porous structure ,large specific surface area (especially large micropore volume),and great hardness ,which leads to an extremely adsorption ability to organic substances and free chlorine in water and harmful components in air as well . As a result, FORWARD Brand PJ series crushed coal based activated carbons are suitable adsorbents for deep purification of drinking water ,and separation of bacteria and harmful components from air.