The Honeywell N06575089L is a genuine ABEK1P3 filter cartridge designed for use with compatible Honeywell Optifit Twin full face masks. This industrial-grade filter provides comprehensive respiratory protection against a wide range of hazardous substances, including organic gases and vapours (Type A, boiling point > 65°C), inorganic gases and vapours (Type B), acid gases (Type E), and ammonia and organic ammonia derivatives (Type K), all at Class 1 capacity. Additionally, it features a P3 particulate filter for high-efficiency protection against solid and liquid particulates. Certified to EN 14387 and EN 143 standards, these filters ensure reliable respiratory safety in demanding industrial environments. This part number typically refers to a pack of 4 cartridges.