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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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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:
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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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Here, people who supposedly care about their health are running out and buying the cheapest no name masks possible.
I complained to nehydro and they will send a replacement. I heard about nehydro from here and they are supposed to be a reliable vendor. But given the inconsistent quality and only three layers I begin to think they might be counterfeit. There are two different styles of stitching in my bag. I also just purchased from j the authorized distributor and will be interesting to see if there is any difference in quality.
Here, people who supposedly care about their health are running out and buying the cheapest no name masks possible.
Sign up for a Slickdeals account to remove this ad.
Here, people who supposedly care about their health are running out and buying the cheapest no name masks possible.
I complained to nehydro and they will send a replacement. I heard about nehydro from here and they are supposed to be a reliable vendor. But given the inconsistent quality and only three layers I begin to think they might be counterfeit. There are two different styles of stitching in my bag. I also just purchased from j the authorized distributor and will be interesting to see if there is any difference in quality.
I complained to nehydro and they will send a replacement. I heard about nehydro from here and they are supposed to be a reliable vendor. But given the inconsistent quality and only three layers I begin to think they might be counterfeit. There are two different styles of stitching in my bag. I also just purchased from j the authorized distributor and will be interesting to see if there is any difference in quality.
MATERIAL:
46% non-woven polypropelene, 28% melt-blown fabric, 26% ES hot air cotton.
Ear loops: Latex free
Nose piece: Adjustable aluminum
Basically 46% non-woven polypropelene are for inner and outer layers weights, plus meltblown and hot air cutton, 4 layers in total.
I took a look again, even with some frays at top, the meltblown and outer layer stick together quite closely, maybe not separate in your cases. There's a possibility that you treated outter and meltblown as one layer, thus counted total 3.
MATERIAL:
46% non-woven polypropelene, 28% melt-blown fabric, 26% ES hot air cotton.
Ear loops: Latex free
Nose piece: Adjustable aluminum
Basically 46% non-woven polypropelene are for inner and outer layers weights, plus meltblown and hot air cutton, 4 layers in total.
I took a look again, even with some frays at top, the meltblown and outer layer stick together quite closely, maybe not separate in your cases. There's a possibility that you treated outter and meltblown as one layer, thus counted total 3.
The one they sell at the local China market has 5 layers as well as the MIT CDC tested one.
Can't believe they pull something like this.
I specifically asked him don't buy any English version.
I complained to nehydro and they will send a replacement. I heard about nehydro from here and they are supposed to be a reliable vendor. But given the inconsistent quality and only three layers I begin to think they might be counterfeit. There are two different styles of stitching in my bag. I also just purchased from j the authorized distributor and will be interesting to see if there is any difference in quality.
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