lloydarmbrust

6 ms·

31.
by lloydarmbrust 5y ago
woot
32.
by lloydarmbrust 5y ago
Done
33.
by lloydarmbrust 5y ago
Okay I put a disclaimer and typing up a post to link to LMK what you think: https://www.armbrustusa.com/pages/mask-testing
34.
by lloydarmbrust 5y ago
Okay I put a disclaimer right on the front and we are typing up an explanation right now. Thank you for this feedback! https://www.armbrustusa.com/pages/mask-testing
35.
by lloydarmbrust 5y ago
These are good points. Working on rewording this now.
36.
by lloydarmbrust 5y ago
Okay working on this now.. thanks for the suggestion. I should note that even N95 is extremely effected by fit. I've gotten as low as 80% filtration on a flat-fold N95.
37.
by lloydarmbrust 5y ago
Yes but it differs from model to model. I get as low as 80% and as high as 99% on my face. Fit is a big deal because it's personal and hard to communicate. I think it was Amazon that found when scanning their workforce that they discov
38.
by lloydarmbrust 5y ago
Yes the reasons for failing are in our testing notes being transcribed now. Over 250 hours of actual testing just to get to this part and with Omicron we wanted to get the raw data up ASAP. Notes should be live in about 275 of them hopefull
39.
by lloydarmbrust 5y ago
Okay we updated the site to work on mobile. Thanks for this... seems obvious now but total miss on our part. Thank you!!
40.
by lloydarmbrust 5y ago
We have updated the mobile view please LMK what you think.
41.
by lloydarmbrust 5y ago
Using the industry standard TSI PORTACOUNT® RESPIRATOR FIT TESTER 8048 It measures the air outside the mask verses inside the mask. https://tsi.com/products/respirator-fit-testers/portacount-r...
42.
by lloydarmbrust 5y ago
IYKYK
43.
by lloydarmbrust 5y ago
A few things. The PFE test I'm doing is a 2min test and doesn't tell you what the mask will do under load (all day use). It's really a simple way to tell if the mask sucks but not if the mask is good (if that makes sense). If
44.
by lloydarmbrust 5y ago
Haha thanks.. this one got out of hand. People kept asking me if x or y mask was "good" and I was just really curious... one day I looked up and had tested more masks than the CDC. I learned so much though about how different manu
45.
by lloydarmbrust 5y ago
Not exactly.. it really depends on the situation. For example an ASTM 2 or 3 surgical mask fabric has a filtration of 98%+ On my face I have a leakage of about 21% or PFE of 79% when worn normally. With an ear saver, it jumps to 91%. With a
46.
by lloydarmbrust 5y ago
In the US the standards for adults are the same as kids... in China they just came out with a new standard but for reasons I wont go into we don't cover it (very China specific). That said, I have also noticed this... if a manufacturer
47.
by lloydarmbrust 5y ago
Just realized you dont see the full data set unless you are on desktop...
48.
by lloydarmbrust 5y ago
Looks cool too!
49.
by lloydarmbrust 5y ago
Yes, it took us a long time to get it right... manufacturing is hard but that's why we have an earloop guarantee. Write support@armbrust.com and they will refund you or get you a new order.
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by lloydarmbrust 5y ago
Oh ha this is a good idea
51.
by lloydarmbrust 5y ago
Sounds like a PG quote....
52.
by lloydarmbrust 5y ago
I haven't seen them... second one looks legit to me.
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by lloydarmbrust 5y ago
Cloth is pretty useless... here's a neck gaiter compared to a surgical mask: https://www.youtube.com/watch?v=40gAXGOlEmI Also tested my kids minion pillow case which beat the gaiter :) https://www.youtube.co
54.
by lloydarmbrust 5y ago
Thanks! Yes we are adding those notes now... most of the KN95 fails are the incorrect markings on the mask. To pass the GB2626-2019 standard (where the KN95 lives) you have to put the manufacture name, standard name (eg, "GB2626-2019&q
55.
by lloydarmbrust 5y ago
Yes, Elastomerics are awesome but require a completely different machine to test... plus I've found that most consumers will not buy them because of the darth vadar effect.
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by lloydarmbrust 5y ago
Exactly. We can't tell you how it will fit on your face but can tell you if the fabric fails. You need both filtration AND fit to make a good mask.
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by lloydarmbrust 5y ago
Ahhh... good point. The search will work but you are correct that the full version is better on desktop.
58.
by lloydarmbrust 5y ago
Yes. Look for masks with a double nose wire. We make one and many find it does not fog their glasses... but there are plenty of others that make them too.
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by lloydarmbrust 5y ago
Ah! You caught a mistake. Thank you it's fixed. China and Taiwan are separate (they make very different masks) but I haven't been able to find any from Taiwan to test.
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by lloydarmbrust 5y ago
Testing masks is very specialized and all in I've spent about $250k on the mask lab. I just bought a new machine that costs about $90k. Here's an overview of the machine: https://www.youtube.com/watch?v=vpjajJrDWBk

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