Numbers of respirators, cost accumulated and waste generated per strategy over a duration of 6 months per base, low and high number of estimated HCWs
| Respirator strategy | Number of respirators required | Cost accumulated (US$) | Cost accumulated (US$) per patient | Waste generated (kg) | Waste generated (kg) per patient |
| 1 per patient encounter | 7.41 (7.22–7.59) billion | $6.38 (6.21–6.52) billion | $16.09 (15.67–16.46) thousand | 84.0 (81.79–85.96) million | 211.94 (206.38–216.88) |
| 1 per day | 3.29 (3.10–3.47) billion | $2.83 (2.67–2.98) billion | $7.13 (6.73–7.52) thousand | 37.22 (35.15–39.29) million | 93.90 (88.69–99.12) |
| UVGI-decontaminated 3M 1860 N95 respirators | 1.64 (1.55–1.73) billion | $1.41 (1.33–1.49) billion | $3.56 (3.37–3.76) thousand | 18.61 (17.58–19.64) million | 46.95 (44.34–49.56) |
| H2O2 decontaminated 3M 1860 N95 respirators | 1.15 (1.09–1.21) billion | $1.65 (1.60–1.71) billion | $4.17 (4.03–4.31) thousand | 13.03 (12.30–13.75) million | 32.87 (31.04–34.69) |
| Reusable TEAL respirator+disposable filters | 0.018 (0.017–0.019) billion | $1.24 (1.17–1.31) billion | $3.13 (2.96–3.30) thousand | 15.73 (14.85–16.60) million | 39.68 (37.47–41.88) |
| Reusable TEAL respirator+decontaminated filters | 0.018 (0.017–0.019) billion | $0.831 (0.822–0.841) billion | $2.10 (2.07–2.12) thousand | 1.58 (1.49–1.67) million | 3.99 (3.77–4.21) |
| Surgical mask, 1 per day | 3.29 (3.10–3.47) billion (surgical masks) | $0.460 (0.434–0.485) billion | $1.16 (1.10–1.23) thousand | 27.92 (26.37–29.47) million | 70.45 (66.53–74.36) |
HCW, healthcare worker; TEAL, transparent elastomeric adaptable long-lasting; UVGI, ultraviolet germicidal irradiation.