3M™ replacement cartridges, used with 3M™ 6000 or 7500 series face pieces for professional removal of certain mold, lead and sprays from coatings and sealants, are NIOSH approved and offer at least 99.7% efficiency against solid and liquid aerosols, including oils. Easy-to use, 3M™ replacement cartridges are a great choice in respiratory protection for the pro. Not recommended for DIY applications.