Syringe filters are single-use, membrane-based, disposable devices (typically \(13\)–\(33\text{mm}\) diameter) used to remove particulates from small-volume liquid/gas samples (\(<100\text{mL}\)) before analytical techniques like HPLC, IC, or GC. They improve data accuracy and protect sensitive instruments. Key types include sterile (for sterilization) and nonsterile (for clarification), featuring various membranes (Nylon, PTFE, PES) and pore sizes (0.22\text{\textmu m}–0.45\text{\textmu m}).