... cleaning ability,and good shape, pore size smaller, less air resistance,thickness optional, easy to cut and fold according ... 420g/ M2Thickness(mm) 1.50-1.60mmFiltration Efficiency >=98%Air Permeability >1100L/ M2.SDust Collection 490g/ M2Tensile Strength >=200N ... °C Mainly used for a variety of vehicle air conditioner,cabin filters, home air conditioning, air purification, and water filtration etc.