... carbon filter paper 1.Good uniformity,and shape 2.Less air resistance 3.Easy to cut and fold Activated carbon filter ... capacity, cleaning ability, and good shape, pore size smaller, less air resistance, thickness optional, easy to cut and fold according to ... / M2 Thickness(mm) 1.4-1.5mm Filtration Efficiency >=98% Air Permeability >1000L/ M2.SDust Collection 450g/ M2Tensile Strength >=260N/5CMHeat ...