Cleanmo's CM-FS707 Cleanroom Swab is constructed from compressed, 100 ppi (Z) Closed-cell polyurethane thermal bonded foam It has excellent compatibility with most common solvents as well as excellent solvent-holding capacity. Features: - Low in both particles and ion content - Excellent solvent-holding capacity -Compatible with most common solvents -No adhesives or coatings Applications: -Micro cleaning disk drives - Effectively clean small, hard to reach areas with solvents such as IPA -clean excess materials - For general purpose cleaning -Fiber Free Cleaning Tool for Cleaning Gun/ Critical Surface/Optical Lens -Available with 99% Isopropyl Alcohol