... 2.High purification efficiency, 3.Low resistance, reusable Jh type air-purification activated carbon,coal based activated carbon This product is made of ... , developed micro porous, high absorption, high purification efficiency, low resistance, reusable, Its application is mainly purifying the air ... 850≥600≥500Hardness (%)≥93≥93≥93Moisture (%)≤4≤5≤5(Ash%)≤10≤11≤13Loading Density (g/l)570±20650±20780 ...