1 Why choose Vablue Filter Bag? 1) the Acicular 100%pure fiber has the multi dimensional structure 2) Special glaze put an end to the surface of fiber to avoid secondarily pollution 3) Fully FDA compliant materials 4) Silicone Free Needled Felt 5) 11 sets of different moulds to replace nearly most kinds of the filter bagsâ?? collars (EATON/FSI/CUNO/GAF) 2 Product Technical Parameter and Detail Items Metric Unit PE PO NMO PTFE Weight per unit area g/m2 350 350 150 700 Thickness mm 2.5 3.0 0.3 1.1 Air Permeability l/dm2/min 300 300 -- 150 Tensile Strength N/5 cm MD 800 800 -- 700 CD 800 800 -- 700 Bursting Strength N/cm2 413 420 190 Heat Shrinkage % MD