CleanSpace CST A2 P3 P SL R combined filter is suitable for protection against airborne particulate (dust, mists and fumes), organic gases or vapours; important: the filters are compatible with latest model CleanSpace ULTRA and CleanSpace PRO PAPR power units; when selecting a CleanSpace filter please consult a health and safety specialist for advice on the appropriate respiratory equipment and filter use; used with the revolutionary CleanSpace ULTRA and PRO PAPR: light weight, no hoses or belts; suitable for protection against airborne particulate (dust, mists and fumes organic gases or vapours); materials: fibreglass particulate media and plastic casing, silicone seal; easy and quickly fitted and removed from the power unit