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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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Also, check your masks carefully. I ordered a pack of 10 from NEHydro and one mask was not stitched well at the top and I could see the layers.
I have never seen a Powecom kn95 with any thread comes off. However, i have never bought any export English version.
I don't buy into those 5-ply marketing gimmick. My old and trustworthy 3M KN95 has only 3 layers, but you can see how crazily thick the middle meltblow it has:
Attachment 9170129
Again, if nowadays we can freely buy 3M/Honeywell masks, even it's KN95 standard, we won't consider those imported KN95s.
I dont know if thats a gimmick. May be another no brand or lessor brand do that.
However, I think those earlier 5 layers Powecom kn95 were the one being tested. If i were to sell 4 layers one, i would say otherwise. If anyone can call or email to verify with the MIT team that performed the test, that b great.
5 layers with 2 layers of melt-blown layers has its advantage. The 2 melt-blown layers' static can catch/attract different sizes particles/ droplet and as different density melt blown layers filter out different sizes particles, hence prolonging the usage time of the mask and enhancing the filtration rate.
I missed those days when I can walk into a Home Depot n get a 3 bucks single 3m N95. or spend 13 bucks on Amazon to get 10 3m N95.
One is with ear-loops and another has head band in N95 style (still a KN95.)
The package is for the white one.
Those brown bags are what I use to rotate these masks and I use each one around 15 to 20 times till I can feel I am having difficulty breathing through em. So having a set of 10 is great for rotation but not necessary.
I remember reading some UK medical workers saying 4 days is the minimum to rest (in a brown paper bag) the mask. So having a set of 5 would do the job as well.
that is the reseller chinese company name and I looked at its licensing.
it doesn't seems to have the level 2 medical equipment license to sell this product.
btw, it is for semi wholesale only 10 packs min.
the price for a 10 pcs/ pack during the "618 shopping holiday" at JD or Taobao was about CNY 89 (USD 12.4) (USD 1 to CNY 7.2)
As of today, i don't see any powecom kn95 selling in the local market there...strange.
https://i-item.jd.com/69537103682.htm
Thanks for your hard working! We as consumer deserve the truth.
Guess we can only hope to get 4 layers? I don't like this practice. .
would'nt call the 5-ply gimmick.
For their Local market, Powecom is still selling both the 5 layers version and the Export English version.
However, I think those earlier 5 layers Powecom kn95 were the one being tested. If i were to sell 4 layers one, i would say otherwise. If anyone can call or email to verify with the MIT team that performed the test, that b great.
5 layers with 2 layers of melt-blown layers has its advantage. The 2 melt-blown layers' static can catch/attract different sizes particles/ droplet and as different density melt blown layers filter out different sizes particles, hence prolonging the usage time of the mask and enhancing the filtration rate.
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1) cdc tested the 5-layer version, Powecom has moved to make only the 4-layer version for both export n their local mkt.
Hard to explain to the oversea customer if I were them even assuming the 4-layers still as effective as the 5-layer. so a white-lie.
2) cdc tested the 5-layer version, Powecom makes both 4 & 5 layer version. the 4-layer version is not as good so only for higher profit export markets.
Lie through their teeth bait & switch sons of bxtches
3) cdc tested the 4-layer version ( I doubt it as the timeline doesn't match up,) the 4 layer version were always intended for export purpose and the 5 layers version are made for their local mkt.
both are effective products, different design, that's all.
4) cdc tested the 4-layer version (still doubt it,) the 4-layer export version has good 99% filtration rate and the 5-layer is even better.
so okay, they keep the better stuff for their local market.
I can go on and on but the fact of the matter is what can we get right now in the US market that is semi legit and semi affordable.
I would still go for this and the BYD @ Costco and some other brands that's white-listed on the CDC site.
https://www.cdc.gov/niosh/npptl/r...ed-508.pdf
If these are the quality of those, I would like to try
Also whats the safest method of payment to use on a site like that? I never heard of them, bonefidemasks
EDIT: Ordered 10. Might as well try it considering its around the same as the snow joe ones price wise. If they are good, I will bulk order more
If these are the quality of those, I would like to try
Also whats the safest method of payment to use on a site like that? I never heard of them, bonefidemasks
EDIT: Ordered 10. Might as well try it considering its around the same as the snow joe ones price wise. If they are good, I will bulk order more
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