Particulate filter P3 R (pack of 22) , protection class FFP3, white. Supplied = assembled. Product type = replaceable filters for half/full masks. Protection class = FFP3. Conforms to = EN 143:2000+A1:2006. Colour = white. Particulate filter P3 with robust plastic housing for optimal protection of the particulate filter. Fine dust filter for work in dusty environments, for example when sweeping, grinding, sanding, cutting, mixing. X-plore bayonet style connection - compatible with Drger half masks and full face mask 5500. The innovative Drger X-plore bayonet style filter series is designed for many different uses. It combines a modern design with low level of breathing resistance. Because the bayonet style filters are positioned at the sides of the breathing mask, a broad and unobstructed field of vision is guaranteed. The filters come in packs of two, so that only the number of filter packs necessary need to be opened. Shelf life as of date of manufacture 10 years.