Features: * Respirator features a comfortable, flexible facepiece and lightweight cartridges for an unobstructed view of your project * The high efficiency filters are pleated for extra surface area adding long life while filtering 99.997 percent of dust 0.3 microns and larger * Approved by NIOSH under the NIOSH 42 CFR 84 respirator certification regulations, approved for the P100 filter classification What"s In The Box: * MSA Safety Works 817671 Half Mask Toxic Dust Respirator