Provides protection against particulates, gases and vapours or combination hazards from a compressed air supply source Consistently delivers the airflow level you set, from 170 l/min to 305 l/min Balanced, easy to adjust and specifically designed for respirator use Locking control knob allows airflow to be adjusted to your preference Integrated warning whistle that indicates low air flow Integrated replaceable active carbon filter removes odours Auxiliary port allows air tools to be connected to the regulator without affecting airflow to the headtop Regulator unit can be positioned on the belt to accommodate right or left-handed users Swivelling bayonet connector allows the breathing tube to move freely to the most comfortable position