The Powecom masks were tested by NIOSH/NPPTL 10x with 10 masks in each batch, test results can be found here [cdc.gov] which shows that they have well over 95% efficiency. These were TESTED but not APPROVED by NIOSH as the approval process is different and more complicated.
Direct links to results from the CDC Website:
- April 22, 2020 Minimum Filter Efficiency: 99.21% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- May 19, 2020 Batch 1 Minimum Filter Efficiency: 97.04% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- May 19, 2020 Batch 2 Minimum Filter Efficiency: 98.60% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- May 29, 2020 Minimum Filter Efficiency: 98.96% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- June 26, 2020 Minimum Filter Efficiency: 99.14% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- July 13, 2020 Minimum Filter Efficiency: 99.43% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- July 20, 2020 Minimum Filter Efficiency: 98.55% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- August 31, 2020 Minimum Filter Efficiency: 99.62% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- October 7, 2020 Minimum Filter Efficiency: 99.19% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
- December 2, 2020 Minimum Filter Efficiency: 99.35% https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
Note that the testing done is only for the filter material, and does not account for proper fit. Many people may have difficulty achieving a proper fit/seal with the ear loop design which is why NIOSH Approved N95 masks all have the head band design. Bonefide does offer the head band design [bonafidemasks.com] which likely fits better.
Aaron Collins [yahoo.com], a mechanical engineer with a master's thesis on aerosols, has done his own aerosol testing with Powecom earloop masks and he did get over 97% efficiency [google.com] with the mask on his face.
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Hopefully prices on these continue to drop so I can buy them in bulk.
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On a different note, I know the headband style masks are supposed to seal better, but with this brand, they weirdly fold up in the middle and end up touching my lips the whole time, which is not pleasant.
Thankfully, these are the ear loop kind but I just mention it in case something is thinking of buying the other masks on their site.
My wife and I have very different head shapes and sizes, and the weird mask folding thing happened to both of us so we only use the ear loop ones from this brand.
With the official 3M masks that are in this style, that doesn't happen, but I'm not sure why the Powecom ones fold up like that.
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Hopefully prices on these continue to drop so I can buy them in bulk.
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