Technical and regulatory aspects of prolonged use, reuse and reprocessing of respirators in periods of shortage

Topics discussed:

Conclusiones and recommendations:

• N95 and equivalent standards
• Strategies to optimize the availability of respirators
• Measures to manage respirator shoratages
  1. Extended use
  2. Limited reuse
  3. Reprocessing

• Fundamental aspects to consider in reprocessing
• Main reprocessing methods
• Presentation of an experience on the implementation of reprocessing of N95 respirators in a health center
• During shortages of N95 and equivalent respirators, stopgap measures for optimizing their use may be considered, among them extended use and reuse 
• Since risks are associated with these measures, special criteria and precautions should be used when adopting them, confining their use to situations where they are indispensable
• Extended use is recommended over reuse
• During critical respirator shortages, reprocessing can be considered
• Although saturated steam, UVC radiation, and gas plasma or vaporized hydrogen peroxide sterilization are the respirator reprocessing methods with the most evidence of efficacy to date, no method can be adopted without prior local validation testing in the health facility
• A written protocol for the procedure should be also prepared and health workers trained in the proper use of the reprocessed respirators
• Respirator reprocessing should be regulated by the regulatory authority with jurisdiction over these medical devices