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Filtering Facepiece Respirators (FFRs) Used in This Study
| Manufacturer | Model | Rating | FFR shape | Antimicrobial |
|---|---|---|---|---|
| 3M | 1860S | N95 | Cup | None |
| 3M | 1870 | N95 | Flat fold | None |
| Kimberly-Clark | PFR95 | N95 | Duck bill | None |
| SafeLife | T5000 | N95 | Cup | Triosyn (iodine) |
| GlaxoSmithKline | Actiprotect | N95 | Cup | Virucoat (citric acid) |
