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from elsiesemail
Price at Office Depot has gone up to $22.99. Price at Bona Fide Masks still $22.90 for earloops; price for headbands now $29.00. Use coupon code SAVE5 to get 5% off right now on either earloops or headbands at Bona Fide Masks.
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From Bona Fide Mask: DUE TO AN INCREASE IN COVID-19 CASES WE ARE NOW OFFERING FREE DOMESTIC SHIPPING ON ALL KN95 FDA AUTHORIZED MASK ORDERS THRU 7/19/20! ALL ORDERS SHIP FROM OUR WAREHOUSE IN NEW YORK!
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Quote
from MaroonMaid297
Hey guys don't want to burst your bubble, however, what you are talking about is not a filtration test, but one that has been propagated by social media. You have sadly been misinformed. The only actual liquid barrier test that is performed on respirator masks is for a small classification known as Surgical N95's, which are considered medical devices by the FDA. Also, liquid barrier protection is rated by ASTM and not NIOSH. Your standard N95 from 3m or Honeywell is not designed for liquid barrier protection and the ability of it to hold water has zero impact on filtration. I emailed Powecom after seeing some of these posts just to be sure and recieved the following back:
:
IT IS NOT scientific to test qualified KN95 masks by pouring water into them. The dripping test is just a rumor. Firstly, water will destroy the protection ability of the melt blown filtering layer, that means: Water will destroy the effectiveness of the face mask; Secondly, too much water has weight (universal force[Laugh]) , so too much water will drip. Also, : The first layer of nonwoven material can let O2 (= oxygen ) pass through the face mask. That is why, the 1st Layer of face mask cannot 100% block water, especially when there is too much (for example, a cup of Water , too much water !!) pour in the face mask. This is not a scientific test and should not be used. Below are links from actual testing reports from the NPPTL that may be helpful Guangzhou Powecom Labor Insurance Supplies Co., Ltd.KN95GB262699.2898.962020-211.1pdf icon [cdc.gov] Guangzhou Powecom Labor Insurance Supplies Co., Ltd.KN95GB262699.5698.182020-303.1pdf icon [cdc.gov] Just want to make sure you guys have all the information. N95's are not for liquid barrier protection and neither are KN95's. The only liquid barrier protection masks are real ASTM surgical masks and Surgical N95's, which right now should be reserved ONLY for healthcare professionals. |
Statement for the Medical Device Respirator recalls in Canada
Guangzhou Powecom Labor Insurance Supplies Co., Ltd hereby declare that the following two importers are not our purchasers.We have not found any information about the relevant companies in the sales records. Our company has an export license. All exports in our company's name are genuine.
There are many fake products on the market. The products that fail to pass the inspection in Canada are not exported by our company. Obviously these are fake.
Our main task in February, March and April is to provide the Chinese government with a large number of high-quality and qualified masks.We've been on the EUA list since April 3 . In fact ,CDC has always tested the quality of all respirators,in order to ensure that all the respirators imported to the United States are safe and up to standard. The following four test reports were issued by NPPTL and can be read on CDC website： https://www.cdc.gov/niosh/npptl/R...SULTS.HTML
Government of Canada has issued a RECALL on these products.
Health Canada has determined that certain respirators that do not meet performance standards may pose a health and safety risk to users when used in a setting that requires 95% filtration (such as a health care settings).
https://healthycanadian
Useful links regarding mask reuse and cleaning:
USA today has a good simple article about mask cleaning, including N95 (same as KN95):
https://www.usatoday.co
Official recommendation from CDC :
https://www.cdc.gov/niosh/topics/...xtuse.html
There's a dedicated website about disinfecting N95, contributed by renown researchers and professionals:
https://www.n95decon.or
https://www.n95decon.or
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I have a few 3m N95 1860 and compared them with these Powecom kn95 masks i just received and the kn95 are so thin compare to the 3m masks. How can there be confidences that it still filter out 95%?
https://healthycanadian
Health Canada says their recalls are based on testing by the United States' NIOSH or other laboratories. NIOSH did test some alleged Powecom respirators they think are counterfeit so they listed that test under "considered as counterfeit and/or misuse of company name" on this site:
https://www.cdc.gov/niosh/npptl/R...SULTS.HTML
Even those suspected counterfeit ones had a filtration efficiency of 93-94.8%. I'd gladly pay for those even if they were counterfeit but we don't know if the Health Canada recall is based on that NIOSH test or another test but it does only apply to those two unauthorized distributors according to the above Health Canada site.
Our community has rated this post as helpful. If you agree, why not thank
https://m.youtube.com/watch?v=4pqV3ll
" Results:
Filtration of 0.3um particulates:
- KN95 (Powecom, green) - 99%
- KN95 (Porncom, black) - 86% (far below the 95% standard)
- N95 (3M 8210 Plus) - 99%
Filtration of 0.3um particulates when worn on a face:
- KN95 (Powecom, green) - 5-15%
- KN95 (Porncom, black) - (did not test)
- N95 (3M 8210 Plus) - 87-98%%
Conclusions:
- Powecom Chinese KN95 masks have quite good filtration material
- Porncom Chinese KN95 failed standard of 95% filtration
- However even the good Powecom brand failed when worn on a face because the fit is not very good at all. Unlike the 3M N95 masks, these use ear straps instead of head straps and are not a shell type mask"
Seems like Powecom is legit at 95% filtration but his test shows the straps does not form a good seal and the results dropped dramatically.
One of the commenter said why don't just cut the straps in half and tie them together as head bands.
( I was blown away by this simple idea haha)
No need to to pay extra for the head band version + the wait time tooo.
https://m.youtube.com/watch?v=4pqV3ll
" Results:
Filtration of 0.3um particulates:
- KN95 (Powecom, green) - 99%
- KN95 (Porncom, black) - 86% (far below the 95% standard)
- N95 (3M 8210 Plus) - 99%
Filtration of 0.3um particulates when worn on a face:
- KN95 (Powecom, green) - 5-15%
- KN95 (Porncom, black) - (did not test)
- N95 (3M 8210 Plus) - 87-98%%
Conclusions:
- Powecom Chinese KN95 masks have quite good filtration material
- Porncom Chinese KN95 failed standard of 95% filtration
- However even the good Powecom brand failed when worn on a face because the fit is not very good at all. Unlike the 3M N95 masks, these use ear straps instead of head straps and are not a shell type mask"
Seems like Powecom is legit at 95% filtration but his test shows the straps does not form a good seal and the results dropped dramatically.
One of the commenter said why don't just cut the straps in half and tie them together as head bands.
( I was blown away by this simple idea haha)
No need to to pay extra for the head band version + the wait time tooo.
https://m.youtube.com/watch?v=4pqV3ll
" Results:
Filtration of 0.3um particulates:
- KN95 (Powecom, green) - 99%
- KN95 (Porncom, black) - 86% (far below the 95% standard)
- N95 (3M 8210 Plus) - 99%
Filtration of 0.3um particulates when worn on a face:
- KN95 (Powecom, green) - 5-15%
- KN95 (Porncom, black) - (did not test)
- N95 (3M 8210 Plus) - 87-98%%
Conclusions:
- Powecom Chinese KN95 masks have quite good filtration material
- Porncom Chinese KN95 failed standard of 95% filtration
- However even the good Powecom brand failed when worn on a face because the fit is not very good at all. Unlike the 3M N95 masks, these use ear straps instead of head straps and are not a shell type mask"
Seems like Powecom is legit at 95% filtration but his test shows the straps does not form a good seal and the results dropped dramatically.
One of the commenter said why don't just cut the straps in half and tie them together as head bands.
( I was blown away by this simple idea haha)
No need to to pay extra for the head band version + the wait time tooo.
Check my post regarding old version.
BTW, I did cut straps and made a headband style powecom. LOL...But I didn't feel it's much better than ear saver.
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Check my post regarding old version.
Attached an online photo for nose foam inside mask, for your reference (not the aforementioned window seal):
Attachment 9190667
An easy way to know if you get a good seal: Performing a Seal Check When Donning an N95 Mask (Also applies to KN95)
https://youtu.be/CoSb-HJJ5tk?t=70
https://www.amazon.com/Anti-Fog-Cushion-Adhesive-Protection-Comfortable/dp/B089Y6D1X3/ref=sr_1_18_sspa?crid=34Q09TOU5HA7B&dchild=1&keywords=nose%2Bbridge%2Bfor%2Bmask&qid=1593904961&sprefix=Nose%2Bbr%2Caps%2C228&sr=8-18-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzMk1SRUc2VU5RNEpQJmVuY3J5cHRlZElkPUEwMzc5NjcyMk1CMVZPQjVTREFCSyZlbmNyeXB0ZWRBZElkPUEwNzYxNzYyM1VUVDhKOEFaQlBPQyZ3aWRnZXROYW1lPXNwX210ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1
Attached an online photo for nose foam inside mask, for your reference (not thenaforementioned window seal):
Attachment 9190667
https://www.amazon.com/Anti-Fog-C...RydWU&th=1
https://m.youtube.com/watch?v=4pqV3ll
" Results:
Filtration of 0.3um particulates:
- KN95 (Powecom, green) - 99%
- KN95 (Porncom, black) - 86% (far below the 95% standard)
- N95 (3M 8210 Plus) - 99%
Filtration of 0.3um particulates when worn on a face:
- KN95 (Powecom, green) - 5-15%
- KN95 (Porncom, black) - (did not test)
- N95 (3M 8210 Plus) - 87-98%%
Conclusions:
- Powecom Chinese KN95 masks have quite good filtration material
- Porncom Chinese KN95 failed standard of 95% filtration
- However even the good Powecom brand failed when worn on a face because the fit is not very good at all. Unlike the 3M N95 masks, these use ear straps instead of head straps and are not a shell type mask"
Seems like Powecom is legit at 95% filtration but his test shows the straps does not form a good seal and the results dropped dramatically.
One of the commenter said why don't just cut the straps in half and tie them together as head bands.
( I was blown away by this simple idea haha)
No need to to pay extra for the head band version + the wait time tooo.
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Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!