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Elastomeric respirator - Wikipedia
Supplementing the Supply of N95s with Reusable Elastomeric Half Mask Respirators | Blogs | CDC
3M, others may have unmasked a solution to future N95 shortages - Medical Design and Outsourcing
Implementation of an Elastomeric Mask Program as a Strategy to Eliminate Disposable N95 Mask Use and Resterilization: Results from a Large Academic Medical Center - ScienceDirect