The WINDOW Q FILTER is a high-quality glass filter designed for industrial applications. The WINDOW Q FILTER produces a spectrum equivalent to sunlight coming through a piece of single-strength, single-pane glass. It meets the requirements for window glass filters in various industrial test methods. The WINDOW Q FILTER allows for accurate correlation between outdoor exposures and industrial tests. Its nominal cut-on of 310nm ensures consistent and reliable performance for industrial applications. The WINDOW Q FILTER is suitable for use in various industrial test methods where correlation to outdoor exposures is required.