Table 6.
Results of Moist Heat Autoclave Decontamination of 3M 1870/1870+ FFRs at 121.1°C for 30 Minutes.a
| Method | Mask Type | SteriGage Result | ATTEST Result | NIOSH Fit Test Result | Mean Retention of Aerosolized Particles (%R) | ||
|---|---|---|---|---|---|---|---|
| 0.3 μm | 1.0 μm | 5.0 μm | |||||
| Control | 1870/1870+ | NA | NA | Pass | 97.71 ± 0.52 | 99.79 ± 0.09 | 100.0 |
| 121.1°C for 30 min (1 cycle) | 1870/1870+ (n = 5) | Pass | Pass | Pass (5 of 5) | 84.48 ± 1.46 | 99.35 ± 0.08 | 99.76 ± 0.40 |
| 121.1°C for 30 min (2 cycles) | 1870/1870+ (n = 5) | Pass | Pass | Pass (5 of 5) | 78.76 ± 2.44 | 99.34 ± 0.19 | 99.75 ± 0.37 |
| 121.1°C for 30 min (3 cycles) | 1870/1870+ (n = 5) | Pass | Pass | Pass (5 of 5) | 59.92 ± 13.69 | 99.20 ± 0.30 | 99.69 ± 0.89 |
| 121.1°C for 30 min (5 cycles) | 1870/1870+ (n = 3) | Pass | Pass | Fail (2 of 3) | NT | NT | NT |
a NA indicates not applicable; NT indicates not tested.