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

Price in the title please.

64.99 yeiks

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.

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...

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

Are these even worth 65+3 bucks? Guarantee to protect me from COVID-19?

Expensive...

Are these OHSA certified?

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.

Basically same as these without the nose strip

https://www.aliexpress.com/item/4001093 ... hweb201603_

$46/50 if you can wait

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.

straps that go behind the ears? ugh...

wow I think this is the one we use at our work right now.

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.