1. Gr1 porosity Sintered titanium Filter. 2. Grade:T1-T9 . 3. Aperture:4um- ... 4. Thickness: 0.6-3.0mm. Gr1 Porosity Sintered Titanium Filter for Medical Use 1. Detailed Information. Item NameTitanium ... nitrogen, hydrogen sulfide, acetylene, water vapor, hydrogen, gas, carbon dioxide gas environment. Filtering level Filtering precisionUmMaximum ApertureUmPermeabilitym3/h.m2.kpaThicknessmmCompressive ...