Single-pass filtration efficiency :   99% ~ 100%,  95% ~ 99%,  90% ~ 95%,  70% ~ 90%,  < 70%
Error bar :   < 1%, 1% ~ 5%, > 5%
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particles		 Mask
Type		 Mask
Name		 Single-pass filtration efficiency Error bar ΔP (pa) vair (m/s) T (°C) RH (%) Testing date (YYYY.MM.DD) City Name
0.3μm 0.5μm 1μm 3μm 5μm 10μm 0.3μm 0.5μm 1μm 3μm 5μm 10μm
Ambient N95 3M1860 97.66% 99.05% 99.68% 100.00% N/A N/A 0.81% 0.38% 0.03% 0.00% N/A N/A 186.1 0.3 24.1 22.5 4/4/2020 Boston Enze Tian
Ambient N95 Halyard 99.91% 99.95% 100.00% 100.00% 100.00% N/A 0.02% 0.05% 0.00% 0.00% 0.00% N/A 190.1 < 0.1 24.3 22.7 4/4/2020 Boston Enze Tian
Ambient N95 3M8210 98.09% 99.42% 99.82% 100.00% 100.00% N/A 0.21% 0.25% 0.21% 0.00% 0.00% N/A 187.8 0.3 24.6 22.1 4/4/2020 Boston Enze Tian
Ambient N95 3M9210 99.75% 99.92% 100.00% 100.00% 100.00% N/A 0.11% 0.11% 0.00% 0.00% 0.00% N/A 190.6 < 0.1 24.6 21.9 4/4/2020 Boston Enze Tian
Ambient N95 3M1860 98.59% 99.49% 99.79% 100.00% N/A N/A 0.10% 0.23% 0.42% 0.00% N/A N/A 188.2 0.1 23.3 27.9 4/9/2020 Boston Enze Tian
Ambient KN95 SNIPPET(bluebag) 8.53% 29.42% 80.95% 77.78% 100.00% 100.00% 0.38% 2.72% 8.67% 59.16% 0.00% 0.00% 185.3 0.3 23.4 47.2 4/13/2020 Boston Enze Tian
Ambient FFP2 KANGLV9501 99.02% 99.53% 100.00% 100.00% 100.00% 100.00% 0.27% 0.57% 0.00% 0.00% 0.00% 0.00% 180.1 0.4 24.2 47.2 4/13/2020 Boston Enze Tian
Ambient KN95 KN95 WB -20.54% -44.42% 3.85% 100.00% 100.00% N/A -1.15% -4.86% 1.26% 0.00% 0.00% N/A 56 0.4 24.4 45.9 4/13/2020 Boston Enze Tian
Ambient KN95 KN95 WB -24.84% -41.16% 5.88% 40.00% 100.00% N/A -2.11% -8.07% 2.98% 52.35% 0.00% N/A 77.8 0.8 24.3 45.9 4/13/2020 Boston Enze Tian
Ambient KN95 GB2626-2006 96.78% 98.94% 98.61% N/A 100.00% N/A 0.49% 0.43% 2.98% N/A 0.00% N/A 186.6 0.4 24.5 45.1 4/13/2020 Boston Enze Tian
Ambient KN95 Vhold VH95 94.79% 98.34% 100.00% N/A 100.00% N/A 0.50% 1.26% 0.00% N/A 0.00% N/A 254.3 0.4 24.3 46.9 4/13/2020 Boston Enze Tian
Ambient KN95 Vhold VH95 91.12% 96.54% 100.00% 100.00% 100.00% N/A 0.29% 0.99% 0.00% 0.00% 0.00% N/A 256.9 0.3 23.4 16.2 4/14/2020 Boston Enze Tian
Ambient KN95 Vhold VH95 91.70% 96.60% 100.00% N/A N/A N/A 0.22% 0.85% 0.00% N/A N/A N/A 255.4 0.3 23.9 15.3 4/14/2020 Boston Enze Tian
Ambient KN95 Vhold VH95 87.58% 94.26% 100.00% 100.00% N/A N/A 0.25% 0.93% 0.00% 0.00% N/A N/A 254.6 0.4 24.2 15.3 4/14/2020 Boston Enze Tian
Ambient KN95 Graphene 81.33% 88.31% 91.11% 100.00% N/A N/A 1.40% 1.21% 8.76% 0.00% N/A N/A 185.7 0.3 24.4 46.2 4/13/2020 Boston Enze Tian
Ambient KN95 Disposable face mask 62.27% 76.22% 93.33% N/A N/A N/A 0.69% 3.20% 9.87% N/A N/A N/A 185.7 0.3 24.5 45.9 4/13/2020 Boston Enze Tian
Ambient N95 Gerson 96.65% 98.28% 100.00% 100.00% N/A 100.00% 0.16% 0.27% 0.00% 0.00% N/A 0.00% 185.9 0.4 24.4 45.6 4/13/2020 Boston Enze Tian
Ambient N95 3Q SanQi 95.53% 98.74% 100.00% 100.00% 100.00% 100.00% 0.30% 0.58% 0.00% 0.00% 0.00% 0.00% 255.4 0.4 24 45.9 4/13/2020 Boston Enze Tian
Ambient N95 3Q SanQi 97.13% 99.19% 100.00% 100.00% 100.00% 100.00% 0.40% 0.44% 0.00% 0.00% 0.00% 0.00% 187.2 0.1 24.5 45 4/13/2020 Boston Enze Tian
Ambient N95 3M1860S 97.53% 99.11% 100.00% N/A N/A N/A 0.23% 0.24% 0.00% N/A N/A N/A 181.1 0.4 23.2 26.2 4/19/2020 Boston Enze Tian
Ambient DS Disposable surgery #4 -11.58% -21.62% 26.74% 100.00% N/A N/A -0.33% -2.59% 10.12% 0.00% N/A N/A 18 0.3 24.3 7 4/23/2020 Boston Enze Tian
Ambient DS Disposable surgery #3 1.78% 11.50% 82.05% 100.00% N/A N/A 0.03% 0.85% 9.31% 0.00% N/A N/A 108.6 0.4 24.2 6.9 4/23/2020 Boston Enze Tian
Ambient DS Disposable surgery #2 12.51% 16.90% 70.15% 100.00% N/A N/A 0.40% 1.28% 14.98% 0.00% N/A N/A 109.4 0.3 24.2 7 4/23/2020 Boston Enze Tian
Ambient DS Disposable surgery #1 8.20% 14.99% 71.43% 100.00% N/A N/A 0.06% 0.98% 16.07% 0.00% N/A N/A 109.8 0.3 24.1 6.9 4/23/2020 Boston Enze Tian
Ambient KN95 沂蒙山 9201#1 99.60% 99.90% 100.00% N/A N/A N/A 0.06% 0.12% 0.00% N/A N/A N/A 253 0.1 23.3 7.8 4/23/2020 Boston Enze Tian
KCl KN95 沂蒙山 9201#1 99.91% 99.99% 100.00% 100.00% 100.00% 100.00% 0.02% 0.01% 0.00% 0.00% 0.00% 0.00% 168.7 < 0.1 24.4 21.5 5/4/2020 Boston Enze Tian
KCl KN95 沂蒙山 9201#1 99.08% 99.84% 99.96% 100.00% 100.00% 100.00% 0.19% 0.03% 0.01% 0.00% 0.00% 0.00% 33 < 0.1 24.6 23.9 5/4/2020 Boston Enze Tian
Ambient KN95 沂蒙山 9201#2 99.35% 99.63% 100.00% 100.00% N/A N/A 0.06% 0.32% 0.00% 0.00% N/A N/A 254 0.1 24 7.4 4/23/2020 Boston Enze Tian
KCl KN95 沂蒙山 9201#2 99.77% 99.96% 100.00% 100.00% 100.00% 100.00% 0.04% 0.02% 0.00% 0.00% 0.00% 0.00% 170.6 < 0.1 24.4 21.9 5/4/2020 Boston Enze Tian
KCl KN95 沂蒙山 9201#2 98.91% 99.81% 99.97% 100.00% 100.00% 100.00% 0.23% 0.05% 0.04% 0.00% 0.00% 0.00% 32.5 < 0.1 24.5 27.3 5/4/2020 Boston Enze Tian
Ambient FFP2 3M K112 98.81% 99.31% 100.00% 100.00% N/A N/A 0.07% 0.45% 0.00% 0.00% N/A N/A 251.3 0.3 24.2 6.9 4/23/2020 Boston Enze Tian
KCl FFP2 3M K112 99.71% 99.88% 99.98% 100.00% 100.00% 100.00% 0.06% 0.04% 0.04% 0.00% 0.00% 0.00% 169.6 < 0.1 24.4 20.9 5/4/2020 Boston Enze Tian
KCl FFP2 3M K112 99.84% 99.96% 99.98% 100.00% 100.00% 100.00% 0.04% 0.02% 0.02% 0.00% 0.00% 0.00% 32.9 < 0.1 24.5 20.5 5/4/2020 Boston Enze Tian
Ambient KN95 雨旭9901 (G) 91.35% 96.12% 100.00% N/A N/A N/A 0.68% 0.84% 0.00% N/A N/A N/A 330.7 0.1 23.8 25.7 4/30/2020 Boston Enze Tian
Ambient KN95 雨旭9901 (G) 93.30% 98.07% 100.00% N/A 100.00% N/A 0.50% 0.76% 0.00% N/A 0.00% N/A 254.8 < 0.1 24.1 25.4 4/30/2020 Boston Enze Tian
KCl KN95 雨旭9901 (G) 96.88% 98.92% 99.90% 100.00% 100.00% 100.00% 0.30% 0.19% 0.08% 0.00% 0.00% 0.00% 171.9 < 0.1 24.3 22.7 5/4/2020 Boston Enze Tian
KCl KN95 雨旭9901 (G) 98.33% 99.67% 99.96% 99.90% 100.00% 100.00% 0.26% 0.07% 0.05% 0.21% 0.00% 0.00% 32.2 < 0.1 24.3 20.3 5/4/2020 Boston Enze Tian
Ambient DS Disposable surgery #C1 -10.88% -23.65% -8.62% N/A 100.00% 100.00% -0.41% -1.39% -1.23% N/A 0.00% 0.00% 21.2 0.3 23.3 28.3 4/30/2020 Boston Enze Tian
KCl DS Disposable surgery #C1 -3.25% -11.93% 24.96% 54.70% 49.59% -20.00% -0.16% -0.80% 1.47% 4.25% 6.50% -27.62% 11.5 < 0.1 24.3 18.6 5/4/2020 Boston Enze Tian
Ambient DS Disposable surgery #C2 -12.36% -28.38% 2.16% N/A N/A N/A -0.41% -1.98% 0.35% N/A N/A N/A 27.90909091 0.4 23.7 27.2 4/30/2020 Boston Enze Tian
KCl DS Disposable surgery #C2 -0.21% -10.97% 30.08% 62.07% 64.00% 87.50% -0.01% -0.73% 1.47% 3.44% 14.28% 26.34% 11.5 < 0.1 24.2 22.8 5/4/2020 Boston Enze Tian
Ambient DS Disposable surgery #S1 28.53% 36.25% 78.71% N/A N/A N/A 0.92% 1.26% 10.17% N/A N/A N/A 108.4 0.3 23.8 26.9 4/30/2020 Boston Enze Tian
KCl DS Disposable surgery #S1 65.08% 74.21% 91.91% 99.27% 100.00% 100.00% 1.35% 1.26% 0.52% 0.33% 0.00% 0.00% 22.4 < 0.1 24.2 24.6 5/4/2020 Boston Enze Tian
Ambient DS Disposable surgery #S2 37.35% 50.70% 88.40% 100.00% N/A N/A 1.31% 2.90% 6.30% 0.00% N/A N/A 110.2 0.3 24.1 26.3 4/30/2020 Boston Enze Tian
KCl DS Disposable surgery #S2 72.22% 80.48% 95.10% 99.10% 100.00% 100.00% 2.34% 1.79% 0.63% 0.68% 0.00% 0.00% 23.2 < 0.1 24.3 24.8 5/4/2020 Boston Enze Tian
Ambient KN95 KN95 #1 96.78% 98.39% 96.97% 100.00% N/A N/A 0.22% 0.93% 6.94% 0.00% N/A N/A 182.4 < 0.1 23.4 19.7 5/4/2020 Boston Enze Tian
KCl KN95 KN95 #1 98.30% 99.68% 99.93% 100.00% 100.00% 100.00% 0.20% 0.14% 0.08% 0.00% 0.00% 0.00% 168.6 < 0.1 24.2 20.5 5/4/2020 Boston Enze Tian
Ambient KN95 KN95 #2 97.47% 98.83% 100.00% 100.00% N/A N/A 0.30% 0.87% 0.00% 0.00% N/A N/A 182 < 0.1 23.8 19.6 5/4/2020 Boston Enze Tian
KCl KN95 KN95 #2 98.73% 99.68% 100.00% 100.00% 100.00% 100.00% 0.10% 0.12% 0.00% 0.00% 0.00% 0.00% 168.2 < 0.1 23.9 19.7 5/4/2020 Boston Enze Tian
KCl DS Disposable surgery #O1 -3.71% -17.05% 38.75% 85.79% 84.13% 87.50% -0.48% -3.01% 4.61% 4.06% 18.55% 20.68% 19.8 < 0.1 23.6 17.8 5/7/2020 Boston Enze Tian
KCl DS Disposable surgery #O2 -0.33% -10.34% 43.12% 89.58% 89.78% 100.00% -0.04% -1.48% 4.05% 4.65% 6.88% 0.00% 21 < 0.1 23.6 18.4 5/7/2020 Boston Enze Tian
KCl DS Disposable surgery #DF1 95.74% 97.57% 99.28% 99.82% 100.00% 100.00% 0.49% 0.43% 0.16% 0.38% 0.00% 0.00% 21 < 0.1 24 15.6 5/7/2020 Boston Enze Tian
KCl DS Disposable surgery #DF2 96.91% 98.33% 99.58% 99.84% 100.00% 100.00% 0.22% 0.25% 0.06% 0.34% 0.00% 0.00% 21 < 0.1 23.9 18.9 5/7/2020 Boston Enze Tian
Ambient N95 UNAIR SANHUEI SH9550 98.32% 99.55% 100.00% 100.00% 100.00% N/A 0.25% 0.16% 0.00% 0.00% 0.00% N/A 253.7 0.3 23.9 27 4/30/2020 Boston Enze Tian
Ambient N95 Cardinal Health N95-ML 98.38% 99.44% 100.00% 100.00% N/A N/A 0.21% 0.13% 0.00% 0.00% N/A N/A 184.8 0.3 23.9 26.8 4/30/2020 Boston Enze Tian
Ambient KN95 aRUN N9 海陆通 97.08% 98.63% 100.00% N/A N/A N/A 0.32% 0.27% 0.00% N/A N/A N/A 108.4 0.3 23.9 26.8 4/30/2020 Boston Enze Tian
Ambient KN95 URANCE 75.52% 87.10% 97.32% N/A N/A N/A 0.47% 1.28% 5.89% N/A N/A N/A 329.6 0.4 23.8 27 4/30/2020 Boston Enze Tian
Ambient KN95 KN95-type#1 98.98% 99.10% 99.30% N/A N/A N/A 0.08% 0.36% 1.53% N/A N/A N/A 183.8 0.3 24 27 4/30/2020 Boston Enze Tian
Ambient KN95 No words on mask 91.20% 96.15% 97.73% 100.00% N/A N/A 0.31% 0.65% 3.38% 0.00% N/A N/A 248.6 0.3 23.9 27.5 4/30/2020 Boston Enze Tian
Ambient KN95 SNIPPET-Bluebag 25.90% 39.21% 82.78% 100.00% N/A N/A 0.52% 1.64% 9.26% 0.00% N/A N/A 182.9 0.4 24.1 27.5 4/30/2020 Boston Enze Tian
Ambient KN95 Vhold VH-95 97.66% 99.39% 99.21% N/A N/A N/A 0.18% 0.13% 1.69% N/A N/A N/A 259.2 0.4 23.9 27.7 4/30/2020 Boston Enze Tian
Ambient KN95 GRAPHENE 84.97% 92.05% 98.05% 100.00% N/A N/A 0.34% 0.74% 2.74% 0.00% N/A N/A 184 0.3 24 27.5 4/30/2020 Boston Enze Tian
Ambient KN95 GB2626-2006 96.83% 99.11% 100.00% 100.00% N/A N/A 0.26% 0.39% 0.00% 0.00% N/A N/A 184 0.3 23.9 27.6 4/30/2020 Boston Enze Tian
Ambient KN95 KN95-type#2 71.19% 82.93% 98.06% 100.00% N/A N/A 0.37% 2.46% 2.76% 0.00% N/A N/A 252 0.4 23.9 27.6 4/30/2020 Boston Enze Tian
Ambient N95 Cardinal Health N95-ML#1 97.16% 98.76% 100.00% 100.00% N/A N/A 0.14% 0.42% 0.00% 0.00% N/A N/A 184.4 < 0.1 24 21.8 5/2/2020 Boston Enze Tian
Ambient N95 Cardinal Health N95-ML#2 96.95% 98.38% 97.92% 100.00% 100.00% 100.00% 0.17% 0.66% 4.94% 0.00% 0.00% 0.00% 183.8 < 0.1 24.4 22 5/2/2020 Boston Enze Tian
Ambient N95 Cardinal Health N95-S#3 99.62% 99.91% 100.00% 100.00% 100.00% N/A 0.06% 0.11% 0.00% 0.00% 0.00% N/A 185.4 < 0.1 24.6 21.7 5/2/2020 Boston Enze Tian
Ambient N95 Cardinal Health N95-S#4 98.53% 99.35% 100.00% 100.00% N/A N/A 0.12% 0.22% 0.00% 0.00% N/A N/A 184.4 < 0.1 24.8 18.8 5/2/2020 Boston Enze Tian