For Respirator Manufacturers
Approval Support, Test Procedures, Standards, and User Notices
How to apply, application procedures, fees, logos, testing procedures, other information.
Inform users of conditions or risks that may exist with NIOSH-approved respirators.
Lists of approval projects that are currently being processed, indicating the dates that processing steps were begun and completed.
Only projects that succeeded in granting approvals are included among these averages. The times shown in the table represent the average number of days the projects spent in processing. Individual projects may have resulted in the issuance of multiple approvals. Unless otherwise noted, the times listed exclude the longest 10 percent of projects in each category.