Double cartridge respirator lightweight and adjustable half mask is used in combination gas and or paticulate filter. Cartridges designed to protect the user respirator system from breathing in the hazards of dangerous gases and particulastes. Pioneer Safety RS002 lightweight and adjustable half mask is used in combination with Pioneer gas and/or particulate filter/cartridges, designed to protect the users respiratory system from breathing in the hazards of dangerous gases and particulates. The RS002 half mask design entails a high performance exhalation valve, situated in a black PVC (Polyvinyl chloride) body, that has a soft seal on the face with a dual elastic head band complete and large quick release toggles for ease of putting on and taking off when used with gloves. The RS002 half mask has a low profile design, that integrates with face shields,eye protective devices and hard hats. Pioneer Safety RS002 is a standard size half mask body and being adjustable allows for a customised fit for the user, that complements the Pioneer Safety twin cartridge filter system, resulting in lower inventory of cartridges and respirators. Style:Twin cartridge, adjustable, PVC body, re-useable half mask with a storage protectivemould. Exhalation Valve: Continuous exhalation flow of 300 I/min over a period of 30s.Housing and its attachment withstood an axial tensile force of 50N applied for 10s.