Pricing mentioned is for a BOX. Requires a minimum buy of 1 BOX. Color=White; Filtration Grade=P95; For Model=3M Cartridges 6000 Series, 3M Filter Retainer 501, 3M Respirators 5000 Series; Resistance=Certain Oil and Non-Oil Particles; Type=Pre-Filter; Usage=General Protection; Used With=3M Cartridges 6000 Series, 3M Filter Adapter 603, 3M Filter Retainer 501, 3M Respirators 5000 Series;