... filter function the filter foam is widely used in air conditioner,water pump ,water treament,acquairum,environment project 1 polyurethane ... veticulate,mesh,10ppi to 90ppi.3. good resilient.good air permeability(95%) Tensile strength kpa00 elongation percentage< 90 tearing ... long time5. the filter foam is widely used in air conditioner,water pump ,water treament,acquairum,environment project.also could ...