Fit Test the Planet @FitTestMyPlanet Twitter profile

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Fit Test the Planet

17 days

Jaw motion resilience - 20,000 minutes of adversarial testing with condensing particle counters by 57 contributors, crunched through CERN Root.

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Fit Test the Planet

@FitTestMyPlanet

4 months

This mask is on the *very* short list of good, MRI safe respirators.

Nicole

@n_e_rd

4 months

One MRI down, one to go next week. Sticky Readimask N95 for the win 💪

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Fit Test the Planet

@FitTestMyPlanet

7 months

Good morning

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Fit Test the Planet

@FitTestMyPlanet

3 months

As of this month in 2024, there is still no black Aura or black Aura clone respirator where one (1) size can pass fit testing on almost an entire staff like this. However…

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Fit Test the Planet

@FitTestMyPlanet

7 months

Someone should be able to write a whole-ass book about why this respirator from 2008 ended up not being mass-distributed in 2019.

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Fit Test the Planet

@FitTestMyPlanet

1 year

To 3M: How often do consumers of safety tech want a color option so bad that they do your marketing job for you on a product that doesn’t exist? Please make a textless black option of the Aura 9210+. @3M @ChristosArgyrop @singingsox @AstroKatie

Babak

@ChronicBabak

1 year

@jacobwolff @yesallcrops They said the consumer section of 3M respirators have been asking for black, but none has been developed. I think a consumer pull demand campaign would be a good idea. People should start badgering 3M so they know there’s a demand for them.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Black with no logo is the only acceptable mask for much of the public, and yet @3M , Drager, etc can’t get their shit together and just make a 200ff mask that bypasses outdated industry habits. Every day they don’t make a textless black mask, more people are getting long covid.

Chris Wallace

@c_s_wallace

1 year

Brief, brilliant @kwongkylie meal today: every staff member, including the maestro herself, in an N95 mask. Brava, Kylie! That’s brainy business. Thank you. #COVID19 #auspol

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Fit Test the Planet

@FitTestMyPlanet

28 days

It would be pretty hilarious if 3M were forced to make a black Aura because people just made so many memes/ads for a not-yet-existent black 9210+ mask.

Phi

@phi_psd

1 month

@3M @TRyanGregory MAKE A BLACK AURA. PLEASE. (And make it available globally, I live in Berlin, Tysm)

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Fit Test the Planet

@FitTestMyPlanet

1 year

I’m not sure people understand how unregulated this space is. The mask on the bottom is a vertical bifold with bread twist tie nosewire and happens to be a legit N95. Its typical protection(hmff) is 30 times worse than the *worst series of another respirator. This is still legal.

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Fit Test the Planet

@FitTestMyPlanet

1 year

If you’re using a black respirator and it’s not one of these three, any one of these three is an upgrade. That is all.

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Fit Test the Planet

@FitTestMyPlanet

1 year

N95’s. All of these are N95’s. Think about that when someone says “an” N95 like it’s an interchangeable commodity. The real-world harmonic mean exposure reduction varies by *two orders of magnitude* at both large adult and small adult head sizes.

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Fit Test the Planet

@FitTestMyPlanet

9 months

Current top overall mask picks. Not much change in the last 10 months.

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Fit Test the Planet

@FitTestMyPlanet

4 months

The “foam nosepads in masks” issue in the 2020’s echoes the “side airbags in cars” issue in the 2000’s: Governments are too sclerotic to require them, but any serious maker should be including them.

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Fit Test the Planet

@FitTestMyPlanet

1 year

ChatGPT has a long way to go before it can pack this much wrongness into one tweet.

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Fit Test the Planet

@FitTestMyPlanet

1 year

@harvardmed If only there was a way to not get infected twice a year.

Fit Test the Planet

@FitTestMyPlanet

1 year

I’m gonna need a bigger table.

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Fit Test the Planet

@FitTestMyPlanet

10 months

Mask overviews aggregate thread. Each number is a harmonic mean of 12 exercises using the (non-computer vision assisted) jaw motion protocol. 1/n

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Fit Test the Planet

@FitTestMyPlanet

2 months

Best stuff of the year.

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Fit Test the Planet

@FitTestMyPlanet

1 year

I’m gonna need a bigger table.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Is it really so much to ask? @3M

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Fit Test the Planet

@FitTestMyPlanet

1 year

Recommended black masks list: 1.iMaskUA iMask-3 (out of stock) 2.iMaskUA iMask-2 3.“Stapled Head Straps Wellbefore, Premium 3D PRO KN95 Mask (KF94 Style)”

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Fit Test the Planet

@FitTestMyPlanet

7 months

Fit Test Friday - Core 300 single pass filtration efficiency

Eric Stein is @[email protected]

@toba

7 months

I heard belatedly that Levoit has retracted their claim that their most popular air purifiers are actually HEPA at all. Has anyone in #8020agang or #CleanAirCrew evaluated these to determine their filtration efficiency? Seems the whole Levoit CORE line...

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Fit Test the Planet

@FitTestMyPlanet

10 months

“It’s on every box of masks.” Me: No it’s not. “Liar” Me: *Grabs the nearest box I use all the time. Check all the sides.* It’s not on there. Shocker.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Unpacking the multiple layers of wrong assumptions: Layer 1: An implicit misunderstanding of how electret filters work - thinking that they’re like sieves rather than the overlapped sticky spiderwebs that they actually are.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Time to start a petition?

Fit Test the Planet

@FitTestMyPlanet

1 year

Is it really so much to ask? @3M

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Fit Test the Planet

@FitTestMyPlanet

1 year

@AstroKatie @3M The formal petition:

Fit Test the Planet

@FitTestMyPlanet

1 year

Is it really so much to ask? @3M

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Fit Test the Planet

@FitTestMyPlanet

1 year

You know what time it is

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@FitTestMyPlanet

1 year

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Fit Test the Planet

@FitTestMyPlanet

9 months

@CNN Or just competently use anything from the left column and not get it in the first place.

Fit Test the Planet

@FitTestMyPlanet

10 months

2/n

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Fit Test the Planet

@FitTestMyPlanet

8 months

KN95 update - expanding options at the high end

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Fit Test the Planet

@FitTestMyPlanet

6 months

Coming up on Resilience Test Friday: exposure reduction histograms for two new masks that just landed in the top 5 black masks.

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Fit Test the Planet

@FitTestMyPlanet

1 year

That wasn’t even a cherry-picked example. There’s no bottom to this. I can’t think of another example of types of products where you get this much variation.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Meanwhile, here’s the bigger picture of harmonic mean fit factors. 3 years into a pandemic, the good masks still only match white labcoats

Fit Test the Planet

@FitTestMyPlanet

1 year

I’m gonna need a bigger table.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Black mask thread

Fit Test the Planet

@FitTestMyPlanet

1 year

Black with no logo is the only acceptable mask for much of the public, and yet @3M , Drager, etc can’t get their shit together and just make a 200ff mask that bypasses outdated industry habits. Every day they don’t make a textless black mask, more people are getting long covid.

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Fit Test the Planet

@FitTestMyPlanet

6 months

@MeetJess @3M Having it be without text on the front panel would be amazing.

Fit Test the Planet

@FitTestMyPlanet

1 year

To 3M: How often do consumers of safety tech want a color option so bad that they do your marketing job for you on a product that doesn’t exist? Please make a textless black option of the Aura 9210+. @3M @ChristosArgyrop @singingsox @AstroKatie

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Fit Test the Planet

@FitTestMyPlanet

1 year

Layer 2: You need to be so out-of-touch with the literature as to not realize which particle sizes even carry any SARS-CoV-2 genomes at all.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Current leaderboard. New shortlist V23 revision coming soon.

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Fit Test the Planet

@FitTestMyPlanet

8 months

Reminder that VFlex Smalls are not the smallest high-end respirators. They might be tighter than Auras (despite being longer overall) but VFlex smalls are looser than Trident S and XS. If VFlex 9105S or 1804S is too big, try a Trident RTCFFP2 S (second one from the bottom).

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Fit Test the Planet

@FitTestMyPlanet

1 year

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Fit Test the Planet

@FitTestMyPlanet

8 months

Whatever excuses you hear about a black Aura not happening, remember that they made one for the Brazilian government.

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Fit Test the Planet

@FitTestMyPlanet

5 months

According to Twitter, tonight is the 1-year anniversary of FitTestMyPlanet. Damn that flew by fast.

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Fit Test the Planet

@FitTestMyPlanet

1 year

If more of the public had fit test machines they’d be pissed

Fit Test the Planet

@FitTestMyPlanet

1 year

It’s almost 2023 and there’s still no mask that both matches clothes and scores over a 20 harmonic mean fit factor (unless it’s modified).

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Fit Test the Planet

@FitTestMyPlanet

1 year

I’m normally against using staples on masks or DIY for general public, but I tested the structure of this DIY version in January and it got through a pretty harsh set of tests. So the idea does work... 1/3

Dr. Deepti Gurdasani

@dgurdasani1

1 year

I then did what I've seen a few people (particularly women with smaller face sizes) do with their mask- I stapled a bit around the chin to make it smaller

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Fit Test the Planet

@FitTestMyPlanet

1 year

Layer 3: Electret aside, you need to erase your understanding of diffusion as well. This allows you to not realize that hypothetically, were this virus to be aerosolized as 100 nm particles (just the virion), diffusion would make this *less* challenging than bigger particles.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Earlier overview thread

Fit Test the Planet

@FitTestMyPlanet

1 year

I’m gonna need a bigger table.

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Fit Test the Planet

@FitTestMyPlanet

1 year

The harmonic mean basically says “Don’t forget to tighten the nosewire at least every 20 mins or you might as well be using a bifold.” Wondering if someone can make a jaw-moving animatronic test rig because I definitely don’t want to do this more than another couple times.

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Fit Test the Planet

@FitTestMyPlanet

4 months

Regarding MRI, contrary to popular belief, Envo Pro and Flo Mask Pro are not metal-free (any metal can cause heat injuries and imaging artifacts in MRI). They’re also not even ferrometal free - so they can become projectiles in an MRI machine. Forget mods…just…no.

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Fit Test the Planet

@FitTestMyPlanet

5 months

It has been over a year and a half since the UK Health and Safety Executive broke the painful news that “Earloops are Unreliable - Even with S-Hooks”. Although new earloops with stronger nosewires have come out since, humans haven’t grown stronger ears.

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Fit Test the Planet

@FitTestMyPlanet

6 months

Almost Friday night

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Fit Test the Planet

@FitTestMyPlanet

9 months

It’s Exposure Reduction Testing Friday! A Core 300 is great to have for lots of reasons. Trying to create a forcefield around your face is not one of them.

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Fit Test the Planet

@FitTestMyPlanet

2 months

I like where this is going. Instead of blaming the users or saying “everybody’s unique”, the manufacturer just revised the default tension.

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Fit Test the Planet

@FitTestMyPlanet

1 year

@dgurdasani1 I probably should have just posted this as a comment 😅

Fit Test the Planet

@FitTestMyPlanet

1 year

However, I’d say it’s a last resort. A way better solution is to try to make a friend in Australia and get some Trident RTCFFP2XS or S mailed over. Then do a QNFT on them or at least QLFT. 2/3

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Fit Test the Planet

@FitTestMyPlanet

1 year

Black mask update - the new Wellbefore double-headband KN95s are a distant but solid third place behind iMask3 and iMask2. It has some issues, but it’s going in the right direction. Obviously better than all the earloop Wellbefores, better than all the BNX’s, Powecoms, etc. Its…

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Fit Test the Planet

@FitTestMyPlanet

4 months

This throws a monkeywrench in a lot of old KN95 infographics

Scott Squires

@scott_squires

4 months

For all of those tired of being sick.

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Fit Test the Planet

@FitTestMyPlanet

4 months

Leaderboard for MRI safe masks

MRI safe respirator list

www.testtheplanet.org

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Fit Test the Planet

@FitTestMyPlanet

1 year

Best disposable respirators by region (so far). North America: 3M Aura 9210+ Continental Europe: Dräger X-Plore 1930 Small Asia: Savewo 3D5PX-H Australia: Trident RTCFFP2XS United Kingdom: 3M Aura 1863+

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Fit Test the Planet

@FitTestMyPlanet

3 months

If you’re a large male, the last few months have been an amazing time to get nice stylish highly protective respirators that won’t fit the rest of your family. At least two models (Jedx 5141 (khaki) and Laianzhi HYX1002M(black)) got the details right but the headbands wrong. 2/n

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Fit Test the Planet

@FitTestMyPlanet

1 year

Sip valve. No detectable leak. I’d personally rather just pull the respirator down to drink quickly, but this definitely works as well.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Daily reminder that earloops don’t work, even with S-hooks.

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Fit Test the Planet

@FitTestMyPlanet

8 months

Almost 2024. Still no black Aura.

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Fit Test the Planet

@FitTestMyPlanet

1 year

It’s even better if you make respirators that match clothes other than labcoats! (None of the masks in the picture would do well on an OSHA speech test (bi-folds, earloops), but the point is that most people would get the “best” mask that matches an outfit that they can get.

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Fit Test the Planet

@FitTestMyPlanet

2 months

Fit Test Friday. Battle of the Fancy Foams.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Friday Night Testing. Still waiting for 1 more mask to be delivered…

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Fit Test the Planet

@FitTestMyPlanet

1 year

V23 Typing in standards i.e. “N95” or “FFP2/3” will yield mostly bad purchase suggestions on amazon or google. Search *specific* models known to get high fit factors on most faces. A good list I’m calling “shortlist V23” 1) Aura 9210+ 2) Drager 1920FFP2 small 3) That’s it 1/

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Fit Test the Planet

@FitTestMyPlanet

8 months

Coming up on this week’s Fit Test Friday:

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Fit Test the Planet

@FitTestMyPlanet

1 year

A few companies around the world have trifold double-headband respirators with metal nosewires. Some even work almost as well as Auras. Guess which color is sold out?

Fit Test the Planet

@FitTestMyPlanet

1 year

What a coincidence! Same thing happened to Weldots Fender. It’s almost as if most of the market doesn’t wear white labcoats.

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Fit Test the Planet

@FitTestMyPlanet

1 year

The winner, although it isn’t really a mask. My Davos Safe PramPapr prototype #17 . Two built in Aranet sensors(inside and out for diff), 1 built-in Portacount to see if the building the stroller is in has a has a functioning HEPA. Designed for the hellscape that is 2023.

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Fit Test the Planet

@FitTestMyPlanet

8 months

Trident XXL

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Fit Test the Planet

@FitTestMyPlanet

1 year

The purchase link for the only good black masks as of early 2023: iMaskUA iMask-3 and iMask-2. I have warnings posted in other threads about how difficult it is to set the tension correctly. I don’t recommend any Aura, Drager1920/1930 or vFlex users…

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Fit Test the Planet

@FitTestMyPlanet

10 months

I’m usually pretty jaded but I suddenly can’t help but be excited to see this as a step in the right direction. If YXP301-B is half as good as YXP301 it will be *the* top recommended black mask. If it ever ships.

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Fit Test the Planet

@FitTestMyPlanet

7 months

Nosewires often change the HMFF of respirator designs by an order of magnitude, but are rarely mentioned as features. So a nosewire SQL database table is in the works.

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Fit Test the Planet

@FitTestMyPlanet

1 year

I’m not sure where the meme that 9500 is “smaller than Aura” started, but it’s really not.

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Fit Test the Planet

@FitTestMyPlanet

3 months

To whoever sent me this completely marking-free mask from Japan…could you let me know what it’s called(and possibly send some more)?

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Fit Test the Planet

@FitTestMyPlanet

8 months

@mryoung151 @3MCanada It’s a harder problem: The shape that works best isn’t an overfitted scan of a person’s face in a neutral position or any single position, it’s a flexible device that holds a seal at the extremes of motion and every point in between.

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Fit Test the Planet

@FitTestMyPlanet

10 days

@CaliforniaCodes The valve doesn’t need reversed airflow to close - the mechanics of it make it close based on pressure, so it’s already closed before you finished exhaling. It doesn’t open again until after you’ve started exhaling, so there’s not much opportunity for outside air to flow back.

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Fit Test the Planet

@FitTestMyPlanet

11 months

#8020Agang resources thread

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Fit Test the Planet

@FitTestMyPlanet

3 months

Top picks worldwide still look like this. If you’re switching to something, get fit tested on both because you might be shocked. Aura and Drager1950/1920small are kinda ugly masks and we wouldn’t keep ranking them that high if there wasn’t a reason.

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Fit Test the Planet

@FitTestMyPlanet

8 months

@CNN Instead of dusting off an old N95 it’s probably better to upgrade to a better N95

Fit Test the Planet

@FitTestMyPlanet

1 year

N95’s. All of these are N95’s. Think about that when someone says “an” N95 like it’s an interchangeable commodity. The real-world harmonic mean exposure reduction varies by *two orders of magnitude* at both large adult and small adult head sizes.

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Fit Test the Planet

@FitTestMyPlanet

1 year

Can you tell I don’t like valves? (Outside of home improvement projects) The updated envomask structure, seal, and headband is way better and can accommodate more jaw motion. Now I gotta test the N95 unvalved filter. If someone could mail that to me it would be amazing.

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Fit Test the Planet

@FitTestMyPlanet

3 months

Last night someone contacted me with a few amazing papers that observe the same striking phenomenon in the US that our aggregated dataset is seeing worldwide.

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@FitTestMyPlanet

1 year

Fit Test the Planet

@FitTestMyPlanet

1 year

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@FitTestMyPlanet

1 year

2.5 pandemics from now…

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Fit Test the Planet

@FitTestMyPlanet

1 year

Tutorials and public health messaging are more straightforward(and don’t look like an ad) when there isn’t a visible corporate logo. This isn’t a real mask - text was photoshopped out from an 1870+. The ineffective baggy blues displayed everywhere in messaging also have no logos.

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Fit Test the Planet

@FitTestMyPlanet

2 months

1980: I bet we’ll have flying cars in the future 2024: Announcement: Laianzhi made their black HXY1002M respirators 1cm closer to a reasonable default.

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Fit Test the Planet

@FitTestMyPlanet

4 months

Their cord locks have magnetic springs. Even it you do a modification that isn’t magnetic, there might be a nonmagnetic metal or compound in the plastic that can cause heating. The only way to check is with an MRI machine. Just use a mask that’s entirely tested. Plenty of papers.

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@FitTestMyPlanet

4 months

It’s almost Resilience Test Friday 🎉 #cpcCrashCrew

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Fit Test the Planet

@FitTestMyPlanet

4 months

Fit Test Friday, bird’s eye view. The absurdity is awe-inspiring. The pharmacy near my house has for years only sold the *worst* possible 3M respirator. Also the only 3M respirator in the dataset with “not for healthcare settings” on the package. At…Walgreens.

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Fit Test the Planet

@FitTestMyPlanet

5 months

Even with those defects, iMaskUA iMask 3 are *still* tied for most protective black respirators as of the current month, or at no1. The welds are not the biggest issue iMasks have - it’s the default headband tension. This is why we need to troll @3M to finally make a black Aura.

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@FitTestMyPlanet

11 months

@AJMooreHealth @3M

Fit Test the Planet

@FitTestMyPlanet

1 year

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@FitTestMyPlanet

1 year

How long did it take one of the best disposable respirators to drop below 2 logs of exposure reduction? About 20 minutes of speech and motion without nosewire adjustment.

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Fit Test the Planet

@FitTestMyPlanet

5 months

Heater in a motel producing a disturbing amount of submicron particles.

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@FitTestMyPlanet

1 year

Fit Test the Planet

@FitTestMyPlanet

1 year

2.5 pandemics from now…

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@FitTestMyPlanet

1 year

@jfroh @3M @ChristosArgyrop @singingsox @AstroKatie Moldex made a respirator(2600) where they snuck the required lettering on the headband and it passed reqs, 3M could also have the text be on the underside and barely visible. Or better yet they could also ignore outdated conventions and do what’s best for the general public.

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Fit Test the Planet

@FitTestMyPlanet

3 months

There are no overall average performance standards for masks yet. Anywhere. Pretty much just material standards, with caricatures of structural requirements attached. It’s not what anyone wants to hear. There are N95’s and FFP3’s that work on literally nobody reproducibly.

Dr Satoshi Akima FRACP 『秋間聰』

@ToshiAkima

3 months

Chinese standard earloop KN95s are as leaky as surgical masks. Both have a fit factor of around 2-3 in published studies (pass mark = 100). KN95s can't legally be sold in most countries as respirators. It is not a good standard. Photo: @fittestmyplanet

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Fit Test the Planet

@FitTestMyPlanet

1 year

I guess this has to be a thing. *Ahem* Purchase link thread for Non-European buyers of 1863+’s and other Aura FFP3s: Source #1 . Car Zone, eBay (The first place I found them.) Great for samples. Yes they’re real. Unpredictable shipping.

3M FFP3 Aura 1863+ N95 Disposable Healthcare Respirator Surgical Mask 3M (1-100)

This FFP3 disposable respirator features a lightweight, balanced design. The soft nose foam and the smooth inner cover web is designed to be gentle on the skin. Designed to work well with 3M Eyewear...

www.ebay.com

psuedonyms

@psuedonyms

1 year

@FitTestMyPlanet @MarsMaven @evly843 Where did you buy 9330? They aren't sold in the US.

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Fit Test the Planet

@FitTestMyPlanet

7 months

Profile pic: Here’s a version of the meme that you can make into your profile pic. And we can all find new and creative ways to ask @3MSafety @3MUK and @3Mnews to finally make a few black Auras for people outside the Brazilian government.

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Fit Test the Planet

@FitTestMyPlanet

9 months

Good morning world!

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Fit Test the Planet

@FitTestMyPlanet

1 year

Some new masks

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Fit Test the Planet

@FitTestMyPlanet

2 months

JedX 5141 is definitely a contender right now. The false positive pass rate on fttpCrash2.5 tests is low, so there is some chance that this model can cover >60% of the adult population. What’s interesting is that it might do surprisingly well on tests *harder* than fttpCrash2.5.

Fit Test the Planet

@FitTestMyPlanet

4 months

Just for testers : JEDX 5141 needs adversarial testing. (So does the other mask). But JEDX really needs testing at the small bivariate sizes to find the lower bound M41 score. Definitely not recommending this as a general purpose mask w/o going in for QNFT. #cpccrashcrew