https://www.selleckchem.com/pr....oducts/congo-red.htm
Standardized fit test methods showed no compromise in user fit following UV treatment. Evaluation of particle penetration and airflow through N95 FFRs showed no impact on integrity, and average filtration efficiency did not fall below 95% for any of the respirator types or fluence levels. This work provides evidence that UV disinfection does not compromise N95 FFR integrity at UV fluences up to 10,000 mJ cm-2. UV disinfection is a viable treatment option to support healthcare professionals in their strategy against the spread of COVID