Soft and durable folding silicone half mask, non-degradable, for an optimal fit. Easy to use, ergonomic design and improved suspension system that fits snugly on the top of the head providing a high level of comfort. Threaded connection, DIN for Class 2 filters. Body Silicone Harness Single unit four-point harness with neck strap. Single filter system RD40 connection maximum weight of the filter: less than 300g. Standard EN140. In combination with this half face mask, the following filters can be used: RD40 Gas Filter A2 (1785010), RD40 Combination Filter A2P3 (1783010), RD40 Combination Filter A2B2P3 (1783040), RD40 Combination Filter A2B2E2K2P3 (1784000), RD40 Dust Filter P3 (1786000)