Filter P2 R D7925The P2 R filter is designed to protect against dust, mists, and other particles, including metal fumes. It is compatible with respirators from the 3M™ Secure Click™ HF-800SD and FF-800 series, as well as with gas and vapor filters from the D8000 series.Filter class - P2 RConnection type - Secure Click™Filter type - for solid particlesAdditional Information3M™ Secure Click™ particulate prefilters can be attached to dual-flow gas and vapor filters from the 3M™ Secure Click™ D8000 series to provide protection against certain solid and liquid particles when used with 3M™ Secure Click™ reusable respirators. Use the 3M™ Secure Click™ D701 filter holder to attach two prefilters to each gas/vapor filter.