Table 3: Performance testing of eight FFR models after 20 VPHP decontamination cycles.
|
FFR Model a |
Cycles |
Collection Efficiency (%)b |
Inhalation Resistance (mm H2O)c |
VPHP Off-Gassing (ppm)d |
Strap Stress at 200% Strain (MPa) |
Strap Load at 200% Strain (N) |
|
3M 1860 |
0 |
99.7 ± 0.1 |
8.4 ± 0.6 |
< 0.1 |
0.75 ± 0.07 |
3.71 ± 0.34 |
|
20 |
99.6 ± 0.1 |
9.0 ± 0.4 |
0.2 ± 0.1 |
1.14 ± 0.08 |
5.74 ± 0.38 |
|
|
3M 1870 |
0 |
99.7 ± 0.3 |
7.1 ± 0.4 |
0.1 ± 0.0 |
1.23 ± 0.14 |
2.39 ± 0.22 |
|
20 |
99.8 ± 0.1 |
7.0 ± 0.1 |
0.2 ± 0.1 |
1.12 ± 0.06e |
2.13 ± 0.11e |
|
|
3M 8210 |
0 |
99.7 ± 0.4 |
7.0 ± 0.5 |
< 0.1 |
1.44 ± 0.09 |
5.77 ± 0.14 |
|
20 |
99.8 ± 0.1 |
6.8 ± 0.2 |
0.2 ± 0.1 |
1.21 ± 0.30 |
4.65 ± 0.30 |
|
|
3M 8233 |
0 |
99.994 ± 0.002 |
15.1 ± 0.6 |
< 0.1 |
2.01 ± 0.50 |
22.9 ± 5.51 |
|
20 |
99.995 ± 0.004 |
15.3 ± 0.2 |
0.1 ± 0.0 |
2.38 ± 0.42e |
26.6 ± 4.7e |
|
|
3M 8511 |
0 |
98.9 ± 0.8 |
6.2 ± 0.4 |
0.1 ± 0.0 |
1.06 ± 0.10 |
5.49 ± 0.53 |
|
20 |
99.2 ± 0.3 |
6.5 ± 0.2 |
0.4 ± 0.1 |
1.16 ± 0.03 |
6.29 ± 0.18 |
|
|
Mx 1512 |
0 |
98.8 ± 0.5 |
8.9 ± 0.5 |
< 0.1 |
1.63 ± 0.05 |
5.83 ± 0.21 |
|
20 |
98.9 ± 0.5 |
9.2 ± 0.4 |
< 0.1 |
1.28 ± 0.13 |
4.42 ± 0.51 |
|
|
Mx 2200 |
0 |
98.2 ± 0.5 |
9.8 ± 0.4 |
< 0.1 |
2.24 ± 0.16 |
7.08 ± 0.41 |
|
20 |
98.5 ± 0.5 |
9.6 ± 0.8 |
< 0.1 |
1.98 ± 0.20 |
6.11 ± 0.58 |
|
|
NS 7210 |
0 |
99.5 ± 0.2 |
9.1 ± 0.3 |
< 0.1 |
1.86 ± 0.07 |
4.94 ± 0.18 |
|
|
20 |
99.2 ± 0.3 |
8.2 ± 0.3 |
< 0.1 |
1.66 ± 0.11 |
4.52 ± 0.29 |
aMx: Moldex; bRequirement is > 95% for N95 models and > 99.97% for N100 models (i.e., 3M 8233); cRequirement is < 32 mm H2O for N95 and N100 models; dCompared to OSHA PEL of 1 ppm; eStrap elasticity not statistically different from untreated samples by one-way ANOVA with p < 0.05.