3M-7725-Prefilter-P2-R-3000-Series-1-Piece-3M-70071544723-P-align-left-This-3M-7725-Prefilter-P2-R-is-for-the-3000-Series-&-can-be-used-with-the-3M-8482-3351-organic-vapour-filter-to-make-a-versatile-combined-A1P2R-combined-filter-system-Protects-against-fine-dust-oil-&-water-based-mist-P-3M-70071544723-3000-Series-7725-Prefilter-particles-P2-R-1-Piece