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Show HN: I bought and tested the filtration of every mask on Amazon

armbrustusa.com

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Re: Show HN: I bought and tested the filtration of every mask on Amazon

#171

Post by carlmr »

nier wrote: post #112
lloydarmbrust wrote: post #12

I've spent about 1,000 hours on this with my team using a very expensive (~$250k) lab and I'd love for this to be a great resource for people when choosing a mask. The heavy lift we are doing here is around our particulate filtration efficiency test in which we do either the NIOSH N95 NaCL (0.3 micron) test or the ASTM 0.1 micron latex particle test. I'd love HN feedback on how we improve the interface and make this…

Greetings from Germany. Of course my local interest lead me to the one and only product tested that originated here. https://www.armbrustusa.com/blogs/mask-review/surgical-medte... The accompanying video is informative and I can add that the way the earloops are attached is wide-spread in Germany. Also confirmation from my side that the strings rip right off with this type of attachment regardless of the actual manuf…

>Finally, German quality engineering exists but it’s really not found that often in the wild as the myth would lead someone to believe. So thanks for helping to debunk that in the video.

I don't think you should base anything on N=1, either for or against.

Re: Show HN: I bought and tested the filtration of every mask on Amazon

#172

Post by weinzierl »

_n_b_ wrote: post #170
lloydarmbrust wrote: post #12

I've spent about 1,000 hours on this with my team using a very expensive (~$250k) lab and I'd love for this to be a great resource for people when choosing a mask. The heavy lift we are doing here is around our particulate filtration efficiency test in which we do either the NIOSH N95 NaCL (0.3 micron) test or the ASTM 0.1 micron latex particle test. I'd love HN feedback on how we improve the interface and make this…

I think this is great and thanks for doing this! I have three small suggestion: 1. For masks that fail on marking issues but not filtering efficiency, could they get a third category that’s not pass or fail (something like ‘non-compliant’)? 2. I wish you could filter on pass/fail 3. I wish you included/could filter on price per box and price per mask.

Also big thanks for doing this from me and a third suggestion:

I wish I could filter for "valve" because valved masks are not allowed where I live.

Re: Show HN: I bought and tested the filtration of every mask on Amazon

#174

Post by hhsbdbdbdbdb »

donavanm wrote: post #25

Related, for those who havent seen, is Aaron Collins collection of mask test data https://docs.google.com/spreadsheets/d/1M0mdNLpTWEGcluK6hh5L...

Honestly this is great. It allows to sort by pressure drop so I can pick a mask that has the least resistance.

Re: Show HN: I bought and tested the filtration of every mask on Amazon

#176

Post by nkurz »

pmuk wrote: post #150
OJFord wrote: post #147

Earlier quoted context omitted.

Hi, was interested to see this, but the video is just of you buying them? And the methodology link is to https://www.armbrustusa.com/pages/ which doesn't seem right, and 404s anyway. From the comments here it seems others have got to the right content, so I'm not saying 'avoid this spam nothing here' or whatever, just not sure what's going on. Accessing from Europe (UK) if that's something to do with it.

I was thinking the same. Do you have a video of you testing some of them as well? It would be interesting to see how it works!

Click on any individual mask, and it takes you to a separate page. On most of those pages, there will be a 5-7 minute video showing that particular mask being tested while Lloyd talks about the features of the mask.

Re: Show HN: I bought and tested the filtration of every mask on Amazon

#177

Post by [deleted] »

dylan604 wrote: post #99
boardwaalk wrote: post #89

Earlier quoted context omitted.

Beware confirmation bias…

sorry. should have included, that i looked up that mask specifically because i have some. they do not have the printed text on them, nor the original images from when originally purchased. can't be biased if i have like physical evidence of it, but in this post fact world, i guess that might not be worth much???

[deleted]

Re: Show HN: I bought and tested the filtration of every mask on Amazon

#178

Post by jve »

lloydarmbrust wrote: post #12

I've spent about 1,000 hours on this with my team using a very expensive (~$250k) lab and I'd love for this to be a great resource for people when choosing a mask. The heavy lift we are doing here is around our particulate filtration efficiency test in which we do either the NIOSH N95 NaCL (0.3 micron) test or the ASTM 0.1 micron latex particle test. I'd love HN feedback on how we improve the interface and make this…

https://www.armbrustusa.com/blogs/mask-review/surgical-beixi... has breathability expressed in percentage. Others not.

Buy this mask button should be green :)

Re: Show HN: I bought and tested the filtration of every mask on Amazon

#179

Post by dzdt »

lloydarmbrust wrote: post #79
nopenopenopeno wrote: post #47

Earlier quoted context omitted.

Table only shows mask names on mobile. Don’t be surprised if your announcement doesn’t have the impact you wanted it to. You need a website that does its job on mobile.

Ahhh... good point. The search will work but you are correct that the full version is better on desktop.

Even with "desktop mode" enabled on mobile (android chrome) I still see only one column. You can click in for more information but it is pretty useless as an interface.

Re: Show HN: I bought and tested the filtration of every mask on Amazon

#180

Post by edoceo »

Awesome!

I'm having some issues on the Search Brand part (Pixel, Chrome) it's not clickable and I'm unable to scroll down past that point.

But it works great on Firefox.

Also, I don't see the Envo masks - but they aren't on Amazon. Any chance to expand beyond only what uncle Jeff sells?

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