PolyGARD 793 P3 particle screw filters in a plastic housing. Protects against solid and liquid particles. The filter material is made to make it as easy as possible to breathe air. These filters are lightweight, do not obstruct the field of vision, ensure easy breathing. Directed airflow protects the filter for easier breathing and ensures longer filter life. The rigid housing extends the life of the filter. Meets the requirements of EN 143: 2000 + A1: 2006 standard. The filters are attached with a Bayonet connector.