The CleanSpace CST Particulate Standard TM P3 Filter is suitable for protection against airborne particulates (dust, mists and fumes).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 CleanSpace PRO PAPR: light weight, no hoses or belts Suitable for protection against airborne particulate (dust, mists and fumes). Materials: Fibreglass particulate media and plastic casing, silicone seal Easy and quickly fitted and removed from the power unit Pack of 3