Table 2. Quantitative fit testing results of N95 masks after repeat decontamination cycles.
PortaCount Result (normal & deep breathing exercises only) | |||||
---|---|---|---|---|---|
Groups | Masks | ||||
Control | 3M 1860 | pass | |||
3M Aura 1870 | pass | ||||
3M Vflex 1804S | pass | ||||
AO Safety 1054S | pass | ||||
3M 8210 | pass | ||||
3M 9210 | pass | ||||
# of cycles | |||||
1 | 3 | 5 | 10 | ||
Autoclave | 3M 1860 | pass | fail | fail | fail |
3M Aura 1870 | pass | pass | pass | pass | |
3M Vflex 1804S | pass | pass | pass | pass | |
AO Safety 1054S | pass | pass | pass | pass | |
3M 8210 | pass | fail | fail | fail | |
3M 9210 | pass | pass | pass | pass | |
1 | 3 | ||||
EtO | 3M 1860 | pass | pass | ||
3M Aura 1870 | pass | pass | |||
3M Vflex 1804S | pass | pass | |||
AO Safety 1054S | pass | pass | |||
1 | 2 | 5 | 10 | ||
LT-HPGP | 3M 1860 | pass | fail | fail | fail |
3M Aura 1870 | pass | fail | fail | fail | |
3M Vflex 1804S | pass | fail | fail | fail | |
AO Safety 1054S | pass | pass | fail | fail | |
3M 8210 | pass | fail | fail | fail | |
3M 9210 | pass | fail | fail | fail | |
1 | 3 | 5 | 10 | ||
VHP | 3M 1860 | pass | pass | pass | pass |
3M Aura 1870 | pass | pass | pass | pass | |
3M Vflex 1804S | pass | pass | pass | pass | |
AO Safety 1054S | pass | pass | pass | pass | |
1 | 3 | 5 | 10 | ||
PAF | 3M 1860 | pass | pass | pass | pass |
3M Aura 1870 | pass | pass | pass | pass | |
3M Vflex 1804S | pass | pass | pass | pass | |
AO Safety 1054S | pass | pass | pass | pass | |
1 | 3 | 5 | 10 | ||
UV-C (1120 mJ/cm2) | 3M 1860 | pass | pass | pass | ND |
3M Aura 1870 | pass | pass | pass | ND | |
3M Vflex 1804S | pass | pass | pass | ND | |
AO Safety 1054S | pass | pass | pass | ND | |
3M 8210 | pass | pass | pass | ND | |
3M 9210 | pass | pass | pass | ND | |
1 | 3 | 5 | 10 | ||
Moist Heat (75°C & 22% RH X 3 hr) | 3M 1860 | ND | pass | ND | pass |
3M Aura 1870 | ND | pass | ND | pass | |
3M Vflex 1804S | ND | pass | ND | pass | |
AO Safety 1054S | ND | pass | ND | pass | |
3M 8210 | ND | pass | ND | pass | |
3M 9210 | ND | pass | ND | pass |
PAF: Peracetic acid dry fogging system, VHP = vaporous hydrogen peroxide, EtO = ethylene oxide.
LT-HPGP: Low temperature hydrogen peroxide gas plasma.
UV-C: Ultraviolet light-C radiation (254 nm wavelength).