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[Costco] KN95 Disposable 5-layer Face Mask, 20-pack - $64.99

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  • Nov 14th, 2020 11:54 pm
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Apr 30, 2003
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[Costco] KN95 Disposable 5-layer Face Mask, 20-pack - $64.99

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Costco now has these hard to find KN95 masks. Let's not forget the fact that these are available now and its $3 shipped. I received these in the mail 3 days after the order despite the delay message title.

It is $59.99 at Costco store. (Thanks Teneur!)
Last edited by robattoronto on Jul 19th, 2020 11:18 pm, edited 6 times in total.
159 replies
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Jun 15, 2012
2837 posts
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Saskatoon
Price in the title please.
No need to type thank you; upvote=thanks.
Buffett, investors are focusing “not on what an asset will produce but rather on what the next fellow will pay for it.”

“Because gold is honest money it is disliked by dishonest men.” – R. Paul
Deal Addict
Feb 19, 2017
3669 posts
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Vancouver
A bit more expensive that price found at foodyworld/T&T and other Asian supermarkets but the question is how is the quality.

It was as low as $20 for 10 as far as I’m aware at those stores and the price has being trending downwards.
Member
Jan 13, 2010
274 posts
95 upvotes
Has anyone actually tried these? I wonder if these are more effective then the other kn95s you see floating around on living.ca or amazon etc...
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Dec 11, 2004
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Montreal, QC
$4 each at Dollarama, looks pretty similar
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Dec 5, 2006
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Markham
R5R wrote: Has anyone actually tried these? I wonder if these are more effective then the other kn95s you see floating around on living.ca or amazon etc...
How to try and test effectiveness? Talk to a covid patient? :))

Joke aside, do we really need n95 if we just go grocery kind activities? If you have high risk people at home or visit long term care or hospital, it's different story
Last edited by smartie on Jul 19th, 2020 3:47 pm, edited 1 time in total.
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Sep 29, 2004
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Toronto
Are these even worth 65+3 bucks? Guarantee to protect me from COVID-19?
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Jul 25, 2008
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Ottawa
Expensive...

Are these OHSA certified?
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Oct 29, 2018
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Mr. Robo wrote: Are these even worth 65+3 bucks? Guarantee to protect me from COVID-19?
Definitely not guarantee, even if you're using N95, it is not guarantee.

Personally don't think it's worth, but that's because I stay 6ft away from others so what disposable mask i use is sufficient. But if you interact with more people more often, could be.
Member
Jun 9, 2019
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Mr. Robo wrote: Are these even worth 65+3 bucks? Guarantee to protect me from COVID-19?
https://pubs.acs.org/doi/10.1021/acsnano.0c03597

These are researchers from the Department of Materials Science and Engineering, Stanford University, Stanford, and Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California, United States.

Heating at 85*C, 30% humidity for 20 mins allows them to be re-used many multiple times. Donning/doffing the masks can also reduce efficiency over time. Presumably N95 masks have a better fit than surgical masks, too, so fiddling around with the mask will also disrupt the barrier over time. But apparently, lowering the humidity (eg. in an oven) also does not affect the efficiency, which they tested at 20 cycles.

https://pubs.acs.org/doi/10.1021/acsnano.0c03597

This research was funded by the NIH.

This study found significant degradation after just two cycles of heat treatment, however.

Overall, it seems that N95 is better if you intend to re-use them by sanitizing with dry heat. I'd say this is potentially worth it if you re-use each mask at least 6 times. The studies likely have methodological differences but perhaps if you average it out and throw each one out after at most 10 dry heat cycles, you'd be way more efficient than buying any of the disposable masks I've seen sold at Costco or elsewhere.
Last edited by Oomani on Jul 19th, 2020 4:13 pm, edited 1 time in total.
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Dec 25, 2002
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Mississauga
straps that go behind the ears? ugh...
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Mar 5, 2013
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Manila, Philippines
wow I think this is the one we use at our work right now.

Freedom Mobile F&F

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Feb 23, 2017
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If anyone is interested home hardware also has 20 packs of kn95 for 49.99. Item 1637046. Never thought we'd have something cheaper than Costco.

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