... -160um. 4. Sample available. Superior Permeability Sintered Titanium Rod Filter for gas 1. Detailed Information. Item NameTitanium FilterPorosity 28%-50%Aperture4μ-160 ... sodium, hydrogen, nitrogen, hydrogen sulfide, acetylene, water vapor, hydrogen, gas, carbon dioxide gas environment. Filtering level Filtering precisionUmMaximum ApertureUmPermeabilitym3/h.m2.kpaThicknessmmCompressive ...