About these resources
Personal Protective Equipment Conformity Assessment Studies and Evaluations (PPE CASE) Notes provide a summary of findings from our post-market personal protective equipment tests, evaluations, and investigations. These one-page summaries inform respirator users about common themes or trends we found and provide best practice reminders to prevent future occurrences.
Publications







- NIOSH Approved is a registered certification trademark of the U.S. Department of Health and Human Services (HHS) in the United States and several other countries.
- P100 is a registered certification trademark of the U.S. Department of Health and Human Services (HHS) in the United States.