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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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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679 Comments
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And I would think that seller would have new inventory with the sticker by now but if their listing pictures are up to date, they still don't have it.
Compared to Powecom Bonafide earloop:
The mask material and size seems the same--there is a more substantial nose piece. It is still green but is wider. Without bending nose piece my glasses do not fog like they do on other earlops. I need to do some adjusting but plan on using these in high risk situations until I can get some n95.
GB2626-2006 number on mask
upc 6955984500142
Powecom anti fake label sticker on seal on bottom
Manufacturer Guangzhou Powecom Labor Insurance
Do not see any obvious spelling grammar errors on bag
I have not worn any n95 or know as much about these as other posters. I have gotten 4 separate types of these kn95 and these seal best for my face on initial evaluation.
All my kn95 are better than the surgical masks I have acquired. I figure this is going to be a long haul so I use surgical for quick trips like getting gas, surgical with cloth filter mask for grocery trips, the kn95 for longer more risky trips like when I had to go to dentist for crown. These headstrap will be used to go to gym if they clean up their act(masks are mandated but they do not enforce it and lunkheads ignore rules).
Do the elastic bands seem to be different than the ear loops?
Good to hear about the thicker nose bands as I thought the ear loop nose metal bands were a bit thin and couldn't shape as well.
Some people use heat,UV, hydrogen peroxide vapors, etc but that's too much work for me lol. 72 hrs on any surface should be enough to kill the virus is it's on the mask.
There's a whole site dedicated to it called n95decon.
Do the elastic bands seem to be different than the ear loops?
Good to hear about the thicker nose bands as I thought the ear loop nose metal bands were a bit thin and couldn't shape as well.
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Some people use heat,UV, hydrogen peroxide vapors, etc but that's too much work for me lol. 72 hrs on any surface should be enough to kill the virus is it's on the mask.
There's a whole site dedicated to it called n95decon.
Definitely dispose of it if it's visibly damaged, soiled, or you find it harder to breathe through after a certain amount of use. That's the general guideline for the reusable P100 filtering cartridges for example.
Do the elastic bands seem to be different than the ear loops?
Good to hear about the thicker nose bands as I thought the ear loop nose metal bands were a bit thin and couldn't shape as well.
The wider the elastic bands(earloop or headband) and wider the nose pieces the better the fit on my head. In my use the best nose seal are Powecom headstrap and Aurora ear loop based on fogging of glasses.
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