Moldex P100 Particulate Filter Disk with nuisance level ozoneorganic vapor protection is designed for use with 7000 and 9000 series air purifying respirators and cartridges. Particulate filter disk lighter than traditional filter cartridge has efficiency level of 99.97% or greater against both oil and non-oil based particulate aerosols. Filter is ideal for contaminants that fall under an OSHA substance specific standard and needs a high efficiency particulate air (HEPA) filter. Filter can be used for contaminants including asbestos, lead, inorganic arsenic and cadmium. Filter meets the requirements of NIOSH standards.