Lightweight maintenance free half mask with replaceable particulate filters. The 5000 Series Half Masks have integral gas filters, making the mask disposable and exempt from the maintenance requirements of COSHH if disposed of within one month or when breakthrough occurs (whichever comes first). When particulate filters get clogged they can be replaced for prolonged use of the mask. The low profile design offers excellent field of vision and allows the mask to be worn with additonal PPE like safety glasses. FFABEK1 P3 R D size M/L. Organic, inorganic [Bp>650C], acid, & ammonia gases, P3 particulatesEN405:2001.