Source: Centers for Disease Control and Prevention — Content from the Centers for Disease Control and Prevention (public domain).

Standard Application Procedures Standard Application Procedures for each class of respirator. Jan 24, 2025 Conformity Assessment Notices Collection of NIOSH Conformity Assessment Notices and Letters. Jan 21, 2025 * Respirator Certification Fee Schedules and STPs Provides respirator certification fee tables and corresponding Standard Test Procedures. * APR STPs and Fees List of application-based fees and corresponding STPs for air-purifying respirators. * ASR STPs and Fees List of application-based fees and corresponding STPs for air-supplied respirators. * CBRN APR/ASR STPs and Fees List of application-based fees and corresponding STPs for combination CBRN APRs/ASRs. * Respirator Approval: How to Apply Information for manufacturers on how to apply for respirator approval. * Post Market Evaluations Information on NIOSH’s respirator post-market conformity evaluations. Search NIOSH Approved® Respirators NIOSH Certified Equipment List Learn More New and Noteworthy Performance Testing of Fraudulent Respirator P100® Filters, Organic Vapor Chemical Cartridges, and Combination Cartridges Details the results of performance testing on fraudulent respirator filters and cartridges Sept 30, 2025 Download Download Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requirements: P100 Filters This PPE Case Notes shares the results of fraudulent P100 filter performance testing. Sept 30, 2025 Download Download Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requirements: Combination Cartridges This PPE Case Notes shares the results of fraudulent combination cartridge performance testing. Sept 30, 2025 Download Download