Filter P3 R D7935The P3 R filter is designed to protect against dust, mists, and other particulates, 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 - P3 RConnection type - Secure Click™Filter type - for solid particlesAdditional Information3M™ Secure Click™ particulate prefilters can be attached to 3M™ Secure Click™ D8000 series dual-flow gas and vapor filters to provide protection against certain solid and liquid particles when used with 3M™ Secure Click™ reusable respirators. Use the 3M™ Secure Click™ Filter Retainer D701 to attach two prefilters to each filter.