3M™ Particulate Filter 2135 is one of the 3M™ 2000 series particulate filters. These are used with 3M™ Half and Full Face bayonet filter respirators. Features • Lightweight and provides low breathing resistance • Made from 3M high performance filter media for effective filtration efficiency • 3M™ Bayonet Connection System ensures precise and secure locking • Low profile and well balanced twin filter design • Suitable for use with 3M™ Half Face Respirators 6000/6500QL/7500 and 3M™ Full Face Respirators 6000/FF-400 Serie