Made with 100% borosilicated microglass fibres, these filters offer an excellent level of very small particles retention (up to 0.7µm) and a large loading capacity. They are particularly suitable for micro-filtration of air, gases and liquids as they resist to 500°C and are compatible to most solvents and reagents (except hydrofluoric acid). Glass microfiber without binder, pore size 1.6µm, efficient for air pollution (efficient fine particle retention), suitable also for liquids monitoring.