Millipore Millex® LG non-sterile syringe filters feature a Millipore LCR hydrophilic PTFE membrane and a polyethylene housing. These 0.2µm syringe filters are low protein binding and designed for sample preparation and fine particle removal from solvents, aqueous and organic solutions. Millex® syringe filters are manufactured in a controlled environment for consistently reliable performance using an automated process. Human hands never touch the filter during assembly. A Certificate of Quality included in each box describes Millipore's quality standards in detail.