ACS Nano July 2020 PMID 32584542

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2.

Christopher D Zangmeister, James G Radney, Edward P Vicenzi, Jamie L Weaver

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Mentions

320

Peak: 15 in Jul 2020

across 4 sources since Jun 2020

Extended reach

388,933

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Total likes

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Jun 2020 – Aug 2025

Where it's discussed

News184 articles
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Blogs10 articles
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AI synopsis

What people are saying

Numerous discussions highlight the effectiveness of specific mask materials and mention studies that support claims made by the article. For instance, several individuals cite examples of N95 respirators working better due to their filtration abilities and electrostatic properties, using phrases like 'masks reduce transmission' and 'double-layer tightly woven cotton flannel masks are best'. Such language and technical references contribute to a confident tone, bolstering the perceived credibility of the publication and its implications.

AgreementModerate agreement

Many discussions show support for the findings, emphasizing the importance of certain masks over others.

InterestHigh interest

There is a high level of curiosity about mask effectiveness, reflected in the number of posts asking for studies and sharing personal insights.

EngagementModerate engagement

Although most discussions reflect surface engagement, some users delve into scientific specifics, indicating a moderate depth of conversation.

ImpactHigh impact

Participants perceive the article as significant, believing it contributes to understanding mask efficacy amidst the pandemic.

Abstract in brief

The study evaluated the filtration efficiency of 32 different cloth mask materials and their effectiveness against SARS-CoV-2, including cotton, wool, and synthetic fabrics.
Measurements were taken to assess factors like differential pressure and quality along with a comparison to commercial filters like surgical masks and N95 respirators.
Findings indicated that multilayered cloth masks generally provide better protection against smaller aerosol particles, although the benefits are balanced by the need for breathability.

Read the full abstract

All mentions

Efficacy of TOM BIHN Cotton Flannel Masks Against Aerosols

Discover the details of the TOM BIHN V4 and V2 face masks, made from 100% cotton flannel. Learn about their design and effectiveness in filtration, inspired by a research study on cloth mask materials' performance…

TOM BIHN · Oct 27, 2020 41,258 views

Evaluating Cloth Mask Efficacy Against SARS-CoV-2 Spread

This video explains research on the performance of various cloth mask materials in blocking SARS-CoV-2 aerosols. It highlights the importance of using effective masks and maintaining physical distancing to reduce…

Intips Channel · Jul 13, 2020 126 views

Evaluating Mask Materials Against SARS-CoV-2 Aerosols

This video discusses the effectiveness of various cloth mask materials in filtering SARS-CoV-2 aerosols. It evaluates 32 different materials, including cotton and synthetic fabrics, highlighting the importance of…

The Clear Grounds Show · Aug 29, 2022 48 views

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@AlexBreitenbac3 @NicoReznick @CptJackPower Wrong again. Respirator masks like N95 aka FFP2 masks do work not just on particle size alone, but also on electrostatic deposition. Do you actually read relevant studies or do just parrot b.s. slogans that feed your narrative? https://t.co/P4hiMpAQ6A https://t.co/55pXKKUKfI

Aug 27, 2025 · 1 like · 3,816 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@PSHolstein @AufstandErstGen @IsabelRuland Warte immer noch auf die Studien, auf die er/sie sich bezieht. Bisher dröhnendes Schweigen. Studien wie diese scheinen nicht bekannt oder werden ignoriert. https://t.co/55pXKKVi5g https://t.co/P4hiMpBnW8 https://t.co/PpuNyuE1lm https://t.co/AvnjkTa1gh https://t.co/cF8VSTgVbv

Jul 5, 2025 · 3,816 followers View post →

Dr Sharon Krossa

@skrossa · X

@GerardoRiordan8 @sonofaveatch @WashProbs Multiple studies have proved masks, if worn, are effective. This overview from early in the pandemic names many of them https://t.co/890FSMgZv1 Here’s one discussing the efficacy of various kinds of/materials in masks https://t.co/3SbowX4TPy But mainly: physics is a thing.

May 3, 2025 · 1 like · 1,912 followers View post →

HealthCommunication

@Comm_in_Care · X

RT @WolfmannotJack: @CliveBeggs

Sep 21, 2024 · 1 share · 3,974 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@CliveBeggs

Sep 21, 2024 · 9 likes · 1 share · 3,816 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@_CatintheHat @SMHopkins @trishgreenhalgh ➡️2/2 https://t.co/Dme36da7cl https://t.co/1WKqOf4FoG https://t.co/qhHz0TR8x2 And here are some studies on leakage of surgical masks. https://t.co/CMsa0uHbeh https://t.co/fsiZyDz8YB https://t.co/MePmqdrmBk https://t.co/55pXKKVi5g https://t.co/P4hiMpBnW8 https://t.co/oJ58O7HyKA

Sep 19, 2024 · 1 like · 3,816 followers View post →

Eduardo De la Rosa

@delarosaceae · X

@Voix40125 @rafoji Este es el artículo de donde salen las curvas de filtración de los respiradores N95: https://t.co/1oriIWzYKX. Y aquí está la calculadora de riesgo de @ArmchairEpi que traduje: https://t.co/H1xlyUR5Et

Jul 20, 2024 · 155 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@DrScheuch

Jun 19, 2024 · 1 like · 3,816 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@KaiserCut @RA_MartinBecker @lorenzenhh Eine Auswahl.

May 5, 2024 · 1 like · 3,816 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@_ProtectTheKids Von fehlender Evidenz kann überhaupt keine Rede sein. Hier ein paar Studien. https://t.co/YbitluM1fY https://t.co/YtfktcxQJe https://t.co/iok16LBC99 https://t.co/a9y1rWHedq https://t.co/P4hiMpAQ6A https://t.co/EOT9Zx0j1x https://t.co/phFDltIewq https://t.co/PpuNyuDtvO

Apr 17, 2024 · 2 likes · 3,816 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

Dec 19, 2023 · 20 likes · 3,816 followers View post →

Dak

@d_a_keldsen · X

@CanadianDarth @HeyNurseKat @DallynDana @JBradshaw01 @costcocanada Gaaaah. No. Viruses are in wet aerosols. And N95s don’t have “pores.” That’s not how they work, at all. https://t.co/BETtwX7ZKN https://t.co/2BAGvXmlSQ

Sep 25, 2023 · 1 like · 2,947 followers View post →

friedusedpotato

@friedusedpotato · X

@ColMorrisDavis I'm famous. Anyways, https://t.co/NKmNtO1cJT Unless it's a N95 respirator (not a surgical mask, better than cloth though), odds are you're not going to filter efficiently. Enjoy. But definitely talk to your doctor about your health. Definitely don't listen to me. Or the Col.

Sep 18, 2023 · 1 like · 150 followers View post →

Peter Frank

@FranklyOnline · X

RT @WolfmannotJack: @kprather88 @CDCgov For the benefit of the #CDC : https://t.co/P4hiMpAQ6A https://t.co/iok16LBC99 https://t.co/TErA2a…

Sep 17, 2023 · 1 share · 358 followers View post →

AnnieRN

@ann_mcnitt · X

RT @WolfmannotJack: @ann_mcnitt @kprather88 @MeetJess @keetmuise And who at the CDC does not pay attention to published studies like these…

Sep 17, 2023 · 1 share · 4,770 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@kprather88 @CDCgov For the benefit of the #CDC : https://t.co/P4hiMpAQ6A https://t.co/iok16LBC99 https://t.co/TErA2aj7Tu

Sep 17, 2023 · 5 likes · 1 share · 3,816 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@ann_mcnitt @kprather88 @MeetJess @keetmuise And who at the CDC does not pay attention to published studies like these or why? https://t.co/P4hiMpAQ6A https://t.co/iok16LBC99 https://t.co/6yPzyEO9kY

Sep 17, 2023 · 2 likes · 1 share · 3,816 followers View post →

Dr Kit Byatt

@Laconic_doc · X

@ToshiAkima But we have plenty of evidence showing the physical mechanisms and laboratory performance characteristics of masks... ...not surprisingly, there's a spectrum of efficacy, according to type... [ref: https://t.co/1VgOQrXnVN] https://t.co/QmVAlufJBP

Sep 17, 2023 · 4,627 followers View post →

Dr Sharon Krossa

@skrossa · X

@ward_merrell @notcapnamerica Dude, laboratory tests proved masks work. It’s physics. https://t.co/3SbowX4TPy

Aug 25, 2023 · 1,912 followers View post →

JenniferSchottstaedt

@j_schottstaedt · X

@Sirius14082932 Want to know exactly which kind of cloth masks work best? There’s studies for that, too! https://t.co/wiXX6Au3Rd fyi it’s double-layer tightly woven cotton flannel masks with batting or another filter sandwiched between layers. Used that info to make mine in April 2020.

Aug 25, 2023 · 215 followers View post →

GretaThunbergIsTheOnlySaneHuman

@wilescape · X

@tommyjoad1 @CPC_HQ @PierrePoilievre That study is pre-Covid, so it’s obviously impossible for it to enlighten anyone on exactly how much cloth masks reduce Covid transmission Here’s a study fully devoted to the subject: https://t.co/0ygcxqGYAX

Jan 27, 2023 · 1,064 followers View post →

Aku Karvinen

@AkuKarvinen · X

Jan 3, 2023 · 9 likes · 1,109 followers View post →

Kyle

@krolitian · X

@eric6drcom1 @BasshunterGC @canon_hayes @StockDads @sirDukeDevin @elonmusk Amazing how hard it is for you to read graphs. Source: https://t.co/f89tAQJbt5 https://t.co/m8ihN49ELv

Nov 30, 2022 · 154 followers View post →

Levieuxfini

@levieuxfini · X

@denislafreniere @Sylvie_Jardins @E_Duhaime les variant sont entre 3 a 15 micron ... le masque bleu a à peine 100 micron de filtration . https://t.co/5futvLtrTl

Nov 17, 2022 · 2 followers View post →

the barefoot is legal investor

@hawaiianrobot · X

@SuperMikhail1 @TorontoStar https://t.co/elQ3t1kwW9 idk man, even nanometre-scale and above particles get filtered pretty efficiently with an N95, and supposing that we're just talking purely aerosolised SARS-CoV-2 (70-90 nm) that comes out to 95-100% efficient

Nov 13, 2022 · 490 followers View post →

Gary Beane

@pollinus66 · X

RT @ZekeMD: For everyone uncertain if "masks" of whatever kind are useful...

Oct 18, 2022 · 1 share · 2,026 followers View post →

Zeke McKinney, MD, MHI, MPH

@ZekeMD · X

For everyone uncertain if "masks" of whatever kind are useful...

Oct 18, 2022 · 2 likes · 1 share · 2,563 followers View post →

Sherri Bissell, FNP-C, ENP-C

@sherribissell · X

@gardengirl778 @LazarusLong13 Yes & hard science shows us that only respirators could possibly be effective against the spread on the particulate size of COVID. If that’s how you feel most safe, then go ahead & wear it

Aug 27, 2022 · 420 followers View post →

 wolfheilmann•bsky•social

@wolfheilmann · X

RT @WolfmannotJack: >4. Desweiteren möchte ich Ihnen für die nächste Aktualisierung diese Studien neueren Datums ans Herz legen. https://t…

Jul 18, 2022 · 3 shares · 1,470 followers View post →

isabelMon09

@isabelMon09 · X

RT @WolfmannotJack: >4. Desweiteren möchte ich Ihnen für die nächste Aktualisierung diese Studien neueren Datums ans Herz legen. https://t…

Jul 18, 2022 · 3 shares · 4,367 followers View post →

Waldlaeuferin.bsky.social

@ichbinschoener · X

RT @WolfmannotJack: >4. Desweiteren möchte ich Ihnen für die nächste Aktualisierung diese Studien neueren Datums ans Herz legen. https://t…

Jul 17, 2022 · 3 shares · 6,028 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

>4. Desweiteren möchte ich Ihnen für die nächste Aktualisierung diese Studien neueren Datums ans Herz legen. https://t.co/YbitluM1fY https://t.co/iok16LBC99 https://t.co/EOT9Zx0j1x https://t.co/mmAwTgM8CG https://t.co/bzd3Af2Dbx https://t.co/P4hiMpAQ6A

Jul 17, 2022 · 3 likes · 3 shares · 3,816 followers View post →

Ninjakk

@ShastaGecko · X

@jorica207 @fishyfish67 @RustyAway @MrAntiWoke @JasonWWalton1 @Anvndarnamn5 @JonRFleming @JohnOz1900 @SndhsBl @ALefty123 @Jaisans @cbeckj @USAMRIIDca @glinch72 @MinnesotaExpat @Alfred_StatesX @ic_lib @David4677484957 @ArtysHouse @DebraMMason1 @RAM0667 @Guardia56241490 @DelusionsMass @Trumpbangskids @ChrisBBacon3 @VictorJennpaul @6lennybravo @Lorrilala @Neilcharles1450 @aSinister @girl_pilled @BL20422822 @theDVSMarcus @Barbarajdurkin @MikeDel21893959 @insane_voice @EducatingTrump2 @MedBennett @SampsonRamm @CorpulentWidow @NavyBrat59 @ItsTheAtmospher @DeniersAreDerp @GSwarthout @JeffBernard1 @Based_inReality @RobertVonB1 @BellRoniBell @Jonnyporkchop @DamienHamilto17 https://t.co/08O9YevNZw Idk if you’ll be able to access it, but a simple “cloth masks” search on nearly any university’s online research paper database will come up with dozens upon dozens.

May 13, 2022 · 1 like · 54 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@DSSKniff @FraukeMattnerf Stimmt. Eine Quellenangabe oder Link wäre wünschenswert, wie zB https://t.co/iok16LBC99 oder https://t.co/P4hiMpAQ6A oder https://t.co/msPMrv5gHF Was allerdings Ihr Kommentar zu Hotspotmaßnahmen mit Maskentragen und der Effektivität von FFP2 zu tun hat, erschließt sich mir nicht https://t.co/jMYWSGbh0b

May 1, 2022 · 7 likes · 3,816 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@GuruFunctional @toorsdenote @TRyanGregory O2 and CO2 are indeed much smaller than the exclusion size of FFP2/N95 masks, but, with a particle size of 120 nm, the SARS-CoV-2 virus is not. See these publications, one even predating COVID-19 (note FE 95% equals 5% Penetration) https://t.co/P4hiMpAQ6A https://t.co/gdpppGW5iQ https://t.co/Jy2t8HySQH

Apr 18, 2022 · 3,816 followers View post →

Gary Beane

@pollinus66 · X

RT @wonderf44305972: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2…

Apr 1, 2022 · 1 share · 2,026 followers View post →

Gary Beane

@pollinus66 · X

RT @wonderf44305972: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.c…

Apr 1, 2022 · 1 share · 2,026 followers View post →

wonderful

@wonderf44305972 · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/q6c25La8oW

Apr 1, 2022 · 1 share · 191 followers View post →

wonderful

@wonderf44305972 · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/WwR8PLsP2O

Apr 1, 2022 · 1 share · 191 followers View post →

FO Time

@ChipSpoonts · X

@_omarrr8 https://t.co/Pt44tM9kpg

Mar 9, 2022 · 1 like · 1,760 followers View post →

Zeke McKinney, MD, MHI, MPH

@ZekeMD · X

More background regarding the effectiveness of various types of masks. They tested the filtering efficiency of different materials! (Zangmeister et al.) https://t.co/B6czkYbGr5 4/

Feb 26, 2022 · 2,563 followers View post →

Dr Sharon Krossa

@skrossa · X

@mrep4275 Already posted a link: https://t.co/3SbowWMKBq

Feb 11, 2022 · 1,912 followers View post →

Dr Sharon Krossa

@skrossa · X

@mrep4275 These are just a few found in simple Google search: https://t.co/cpOhWa13Ky https://t.co/6ohp7CJAGL https://t.co/3SbowWMKBq There’s many more.

Feb 11, 2022 · 1,912 followers View post →

whatsinaname??

@thatsnotmine125 · X

@grave_acid @mcfunny https://t.co/nl8Ao6sgvX

Feb 11, 2022 · 4,847 followers View post →

pointy

@Poin_tea · X

@Devon4three @n1nja_n1njag0 * Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2b https://t.co/GzRT2EZOX8) *Low-cost measurement of face mask efficacy for filtering expelled droplets during speech (https://t.co/cRSAHl56K8)

Jan 25, 2022 · 52 followers View post →

Melusine

@Melusin26854555 · X

RT @WolfmannotJack: @Musician1980 @ChanasitJonas 5. Was Studien zur Wirksamkeit von Masken anbelangt, hier einige Beispiele. https://t.co…

Dec 9, 2021 · 1 share · 564 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

Dec 9, 2021 · 8 likes · 1 share · 3,816 followers View post →

SladeG ✝️

@Slad3G · X

@TobyLogsdon There’s some great research available: https://t.co/zEypX08D5e https://t.co/uwtkhdM8Mi

Oct 10, 2021 · 1,450 followers View post →

Number Ten

@bielsafication · X

RT @akm5376: One of the issues that cropped up and has stayed with us due to the initial confusion regarding masking is masks protect other…

Sep 20, 2021 · 2 shares · 85 followers View post →

Joanna Teglund

@JoannaTeglund · X

RT @akm5376: One of the issues that cropped up and has stayed with us due to the initial confusion regarding masking is masks protect other…

Sep 20, 2021 · 2 shares · 8,532 followers View post →

Asit

@akm5376 · X

One of the issues that cropped up and has stayed with us due to the initial confusion regarding masking is masks protect others, but they can also protect you. Not all masks are equally good at that, but every mask is better than no mask 8/ https://t.co/Cv2FTFMC4X https://t.co/1xQxvJZ5m9

Sep 20, 2021 · 6 likes · 2 shares · 4,736 followers View post →

花

@xiaolumin_ke_ai · X

RT @2u3v4w: @neznezxmail @rakuslckita @doburoku009 @AdultSpotDiffer @solid_acid_ N95マスクは圧力損失がサージカルマスクの倍ぐらいあるので、隙間が同じなら、サージカルマスクより漏れる事になります。…

Aug 29, 2021 · 4 shares · 1,422 followers View post →

Andrejs

@shtolcers · X

@intars91 @VjDombrovskis Neskatos video, lasu secinājumus sadaļas zinātniskos rakstos. Varu piedāvāt Jums šādu, ja slinkus lasīt, konceentrējamies Fig.2, Surgical/Twill. https://t.co/rFoAVa7mIb Pirms diskutējiet ar lieliem onkuļiem, izdariet mājas darbus!

Aug 17, 2021 · 251 followers View post →

Admiral Quality: Music-Software/Flight/Space/Sci

@AdmiralQuality · X

RT @AdmiralQuality: @OfficialTRHL It's entirely plausible that cloth can, at least to some extent, reduce transmission of aerosols. They ar…

Aug 9, 2021 · 1 share · 1,526 followers View post →

Admiral Quality: Music-Software/Flight/Space/Sci

@AdmiralQuality · X

@OfficialTRHL It's entirely plausible that cloth can, at least to some extent, reduce transmission of aerosols. They aren't dry virus floating around in the air. They're in relatively macroscopic water droplets. So, not perfect of course, but quite possibly helpful. https://t.co/adkymDvf6U

Aug 9, 2021 · 1 share · 1,526 followers View post →

Vanna J. Hoodlander

@vjhoodlander · X

@veryvirology @kprather88 And as for the original concept about masks, while it is more Dr. Prather's area of expertise, I mean, Doctorate and all, the whole concept of masks is to slow the process of aerosol particulates, and to act as a filter. https://t.co/QPcdrgqZHG

Aug 6, 2021 · 1 like · 429 followers View post →

John (jc) Comeau

@jcomeau_ictx · X

@CathNoakes https://t.co/apY9Jw2E3F, https://t.co/hFEeUV9rXq, https://t.co/XMkdaHDL4e

Jul 20, 2021 · 1,252 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@CathNoakes @cgl_119 To paraphrase Jesse from The Fast Show

Jul 19, 2021 · 2 likes · 3,816 followers View post →

Ed Palermo

@edpalermoRPI · X

@hochbergjason @ProfEmilyOster You can find the engineering explanations here: https://t.co/ocNxjQsuzT and here: https://t.co/eDKDB11LHW

Jun 22, 2021 · 13 likes · 485 followers View post →

Preston Bobo, Chemgod

@Navarp · X

@BarryESharp @NY_Tuck @TinFoilAwards @boysek @Mxhrad This one https://t.co/EWq3qg5TwZ

Jun 22, 2021 · 2,524 followers View post →

Preston Bobo, Chemgod

@Navarp · X

@BarryESharp This one https://t.co/EWq3qg5TwZ

Jun 22, 2021 · 2,524 followers View post →

Dr. rer. nat. W. Meier-Augenstein, FRSC

@WolfmannotJack · X

@TheScottCharles Darn, almost forgot about this one: https://t.co/P4hiMpAQ6A

Jun 18, 2021 · 3,816 followers View post →

ben 10 ancap nordestino

@ancapnordestino · X

@KnineDar https://t.co/ZEsuIKAeeS O primeiro print tem as eficácias e o segundo no último parágrafo diz que foram testadas em condições idealizadas. https://t.co/hAIfQezoQR

May 31, 2021 · 1 like · 4,959 followers View post →

Morgan

@MorganMRx · X

@AlexBerenson @ScienceMagazine The best info I’ve read on masks was this ACS Nano paper from November. https://t.co/xJwkcXv9sj

May 21, 2021 · 933 followers View post →

Maxime P

@FrostyZZZ · X

@net_nuance @saraart4 @IsaSenecal @NickdeCusa @JauneSandy @LE_GENERAL_OF @CaudeHenrion Alors oui, le masque chirurgical n'est pas parfait mais réduit considérablement le nombre de particules virales exhalées : https://t.co/25PGUJ7GIM Et pour ceux qui aiment les détails techniques (quelle taille d'aérosol est +/- bien filtrée) : https://t.co/Q41nRTsO2O

May 10, 2021 · 76 followers View post →

Standard Issue Cog

@NuLLnVoiD4prez · X

@sollyy_x @MsMol69 @shadotisin @Bameron2 https://t.co/7XP1pgCxDL

May 6, 2021 · 1 like · 708 followers View post →

Julio Ponce

@jasonptodd · X

@SalatyelFellipe Tirado desse paper aqui (https://t.co/SpDGWzwkZ4) Em cima é a eficiência de filtração. A que teve melhor resultado, foi a N95. https://t.co/ULaV25jImE

Apr 18, 2021 · 5 likes · 21,530 followers View post →

ben 10 ancap nordestino

@ancapnordestino · X

@kodalif @jay_visen @RRobertTM @Ideias_Radicais Eu vi esse. Na letra C tem o FE (filtration efficiency) Pra vc comparar. Lembrando que o estudo analisou em um cenário ideal onde por exemplo, as máscaras não estavam molhadas. https://t.co/ZEsuIKRP6q https://t.co/mjGGPL4kJE

Apr 18, 2021 · 4,959 followers View post →

ben 10 ancap nordestino

@ancapnordestino · X

@Vitvitinn @Giovany2121 @Repetecopeleco @xksick @R_Free_Thinker @Ideias_Radicais Esse aí só fez um ranking de máscaras. https://t.co/ZEsuIKRP6q FE significa filtration efficiency. Olhe ali na letra C pra ver a comparação de todas as máscaras. Lembrando que no final o estudo ainda diz que os testes seguem condições ideais. Por ex., as máscaras estão secas. https://t.co/5YyFjf3YQP

Apr 17, 2021 · 4,959 followers View post →

Aku Karvinen

@AkuKarvinen · X

@j_seppola @Timotmie @VVuorinenAalto @HeikkiRay @MinnaVakeva @THLorg Tässä on yksi esimerkki (https://t.co/sRFmfeEdga). https://t.co/EkUKBpcLgf

Mar 5, 2021 · 2 likes · 1,109 followers View post →

Gary Beane

@pollinus66 · X

RT @gregfoley2002: For all those who think the science/engineering of masks is a simple question of particle size v 'pore' size. #MaskUp…

Feb 26, 2021 · 1 share · 2,026 followers View post →

Greg Foley

@gregfoley2002 · X

For all those who think the science/engineering of masks is a simple question of particle size v 'pore' size. #MaskUp https://t.co/k48eoCvFTK

Feb 26, 2021 · 1 share · 1,418 followers View post →

Skeptoidius

@Skeptoidius · X

@WatchGates @centinel5051 Y aquí tienes algún estudio (hay muchos más) sobre mascarillas y aerosoles: https://t.co/bAoED23Qpi https://t.co/Ka1xHMZU9o https://t.co/ZK6uNyAGGl Concluyen que algunas sirven y otras no, depende de la calidad de la mascarilla.

Feb 22, 2021 · 120 followers View post →

Chris Carvalho

@gorgepulse · X

@OHAOregon John is wearing a cloth mask with 20% filtration efficiency. It's not doing enough to protect him or the vulnerable people around him. The right choice is a KN95 mask or to wear a surgical mask under his cloth mask. https://t.co/1mik2VVSCc

Feb 13, 2021 · 4 likes · 1,023 followers View post →

maskmary

@maskmary21 · X

Ja sitten vielä kemian huippulehti kaupan päälle. (Kyseinen artikkeli on kolmesta paras) https://t.co/1XRvgqNKFV Joka testaa ei vain muutamaa, vaan 34 eri maskia ja kangasta. Kangasmaski on jälleen yhtä tehokas ja hengittävä kuin kirurginen. @mika_salminen @ivanpuopolo

Feb 2, 2021 · 1 like · 4 followers View post →

Gary Beane

@pollinus66 · X

RT @Curioseantes: Argumento bastante frecuente: "Docenas de estudios demuestran que el uso de cubrebocas no sirve". Bien. Puede ser cierto…

Feb 1, 2021 · 1 share · 2,026 followers View post →

Curioseantes

@Curioseantes · X

Argumento bastante frecuente: "Docenas de estudios demuestran que el uso de cubrebocas no sirve". Bien. Puede ser cierto cierto, o puede ser falso. ¿De qué cubrebocas, mascarilla o barbijo estamos hablando? Como siempre, el diablo está en los detalles: https://t.co/3yX06ZRP6s

Feb 1, 2021 · 1 share · 1,641 followers View post →

Jennstein

@Devionera · X

https://t.co/0iQEV70rFZ

Feb 1, 2021 · 48 followers View post →

Jesus Guillermo

@sacoehueso · X

@benshapiro There is no comparation, limited breathability is after 5 layers. https://t.co/yw6N8yVBDi

Jan 27, 2021 · 146 followers View post →

Margo

@margo94 · X

RT @LazarusLong13: @j0hnkz @AbraarKaran Yes - even the 2/3rd efficiency is better than the lower efficiency of surgical and cloth mask, whe…

Jan 23, 2021 · 1 share · 3,243 followers View post →

Lazarus Long

@LazarusLong13 · X

@j0hnkz @AbraarKaran Yes - even the 2/3rd efficiency is better than the lower efficiency of surgical and cloth mask, when you factor in the fact that the surgical and fabric masks have even worse fit. /1 https://t.co/huJqdYIokG https://t.co/9wNsluMK8J https://t.co/ateTSjDv5K

Jan 23, 2021 · 4 likes · 1 share · 15,766 followers View post →

W8liftinglady

@w8liftinglady · X

@_WlKl_ @Juanecheverry29 @infobellusci @Newsweek https://t.co/SAdhVIA7NU

Jan 15, 2021 · 115 followers View post →

Annie Morgan

@indecisiveannie · X

@zeynep @jeremyphoward re: your Atlantic article-recommend cotton flannel for mask material! Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/i40zDHtc5H

Jan 14, 2021 · 65 followers View post →

Gary Beane

@pollinus66 · X

RT @Leandrogavinier: Essa é a publicação do @acsnano que fez uma noticia do yahoo ir para os trends. https://t.co/WHa02F2NLI

Jan 11, 2021 · 1 share · 2,026 followers View post →

LeandroGavinier

@LeandroGavinier · X

Essa é a publicação do @acsnano que fez uma noticia do yahoo ir para os trends. https://t.co/WHa02F2NLI

Jan 11, 2021 · 1 share · 1,444 followers View post →

ErnstGhost

@ErnstGhost · X

RT @DanKaszeta: Some references on the electrostatic stuff: https://t.co/3nF2JghOYw https://t.co/dDg168tabL

Jan 4, 2021 · 1 share · 909 followers View post →

Dan Kaszeta, FRHistS, Legal Juggernaut

@DanKaszeta · X

Some references on the electrostatic stuff: https://t.co/3nF2JghOYw https://t.co/dDg168tabL

Jan 4, 2021 · 24 likes · 1 share · 37,820 followers View post →

Jack Martin

@JackMartin95 · X

@Jimsmit93410132 @F03148046 @Diggler97 @bbc5live @hugh_montgomery @rachelburden @BBCSounds It is evidence based "Effectiveness of cloth masks for protection against severe acute respiratory syndrome coronavirus 2" Chughtai et al 2020 "Filtration efficiencies of nanoscale aerosol by cloth mask materials used to slow the spread of SARS-CoV-2" Zangmeister et al 2020

Dec 31, 2020 · 77 followers View post →

Ally Weng

@weng_ally · X

New! TOM BIHN V4 & V2 Reusable Cloth Face Masks in 100% Cotton Flannel https://t.co/WAmhyCT8sy via @YouTube

Dec 25, 2020 · 107 followers View post →

Chris Carvalho

@gorgepulse · X

@LeBlanc4Oregon The CDC is being run by the Trump administration. Don't trust them. Wear a KN95 mask, they are widely available, protect you from COVID, & there's plenty of good science to show it. https://t.co/1mik2VVSCc

Dec 8, 2020 · 1,023 followers View post →

Chris Carvalho

@gorgepulse · X

A 2-layer cloth mask is not very effective. Don't trust that you're safe when indoors around others wearing cloth masks. It's highly risky right now with so much virus circulating. More: https://t.co/RRYgxlA45a

Dec 7, 2020 · 1,023 followers View post →

Chris Carvalho

@gorgepulse · X

@DrEricDing Indoors, people need to double mask with a surgical & cloth mask or use a KN95. 2-layer cloth masks comply with health orders, but don’t provide enough protection unless carefully made & fitted. Airborne virus goes right through 2 layers of most cloth. https://t.co/RRYgxlA45a

Dec 4, 2020 · 1 share · 1,023 followers View post →

Artist Laura Vanderlyn

@vndlynArt · X

RT @gorgepulse: @ZakirSpeaks @alex_zee It's technical, but I'm a chemical engineer & understand this. The charts are fairly self explanator…

Nov 25, 2020 · 1 share · 1,385 followers View post →

Chris Carvalho

@gorgepulse · X

@ZakirSpeaks @alex_zee It's technical, but I'm a chemical engineer & understand this. The charts are fairly self explanatory. https://t.co/1mik2VVSCc

Nov 25, 2020 · 5 likes · 1 share · 1,023 followers View post →

syb

@silkesyd · X

@mlbfan257 @PaytonM37048300 @MarkHigbee @JoeBiden From the American Chemical Society: https://t.co/wPBjQb6tK6. https://t.co/UzldQE6nfk.

Nov 22, 2020 · 75 followers View post →

Chris Carvalho

@gorgepulse · X

designing effective policy. I hope this long thread has helped. Reference (1): Zangmeister Christopher D. et al. "Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 ACS Nano 2020 14 (7), 9188-9200 https://t.co/1mik2VEhKE

Nov 21, 2020 · 1 like · 1,023 followers View post →

Dan Kaszeta, FRHistS, Legal Juggernaut

@DanKaszeta · X

@JeffreyODonne19 (3)Zangmeister, Christopher D., et al. "Filtration efficiencies of nanoscale aerosol by cloth mask materials used to slow the spread of SARS-CoV-2." ACS nano 14.7 (2020): 9188-9200

Nov 20, 2020 · 37,820 followers View post →

Sarah25675718

@Sarah25675718 · X

@Mightyanchove @fakeriwnl @ShowElisabeth @LaraLeaTrump ACS Nano: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/ArkOovve86

Nov 15, 2020 · 37 followers View post →

Aviva Gabriel

@avivajazz · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 - PubMed https://t.co/7pkMxVzoRS

Nov 11, 2020 · 3,592 followers View post →

John B. Case

@JohnBCase · X

Everyone should read Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-Cov-2.

Oct 28, 2020 · 632 followers View post →

Gᴀɪʟ{ρєαϲє•ℓονє•ѕϲιєиϲє}

@gmun22 · X

@GWorks55 @I_Marcism @JRubinBlogger @realDonaldTrump Masks work. Masks DO reduce transmission: https://t.co/dk6y3IgcL3 Masks protect the wearer as well: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS CoV-2 https://t.co/upS95Zoip1 #COVID #COVIDー19 #SARSCoV2 #Masks #Science https://t.co/5y3Coxkv9h

Aug 29, 2020 · 152 followers View post →

John Sam

@JohnSam57668631 · X

RT @AbadiaEn: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/Pjgy1…

Aug 25, 2020 · 2 shares · 778 followers View post →

Gary Beane

@pollinus66 · X

RT @AbadiaEn: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/Pjgy1…

Aug 25, 2020 · 2 shares · 2,026 followers View post →

Lorena Abadía-Patiño Asesora en Microbiología

@AbadiaEn · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/Pjgy1P4ogh

Aug 25, 2020 · 2 shares · 217 followers View post →

LG7 fan of reading, walking & democratic republics

@Lechatbon · X

@leftyforce @RexChapman Systematic review of the efficacy of face masks & respirators against coronaviruses & other respiratory transmissible viruses https://t.co/V6FhGuXWLh Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow Spread of SARS-CoV‐2 https://t.co/qVY89yIcj4

Aug 22, 2020 · 1,523 followers View post →

Gᴀɪʟ{ρєαϲє•ℓονє•ѕϲιєиϲє}

@gmun22 · X

@Newsweek

Aug 12, 2020 · 152 followers View post →

Gᴀɪʟ{ρєαϲє•ℓονє•ѕϲιєиϲє}

@gmun22 · X

@ANTHONYBLOGAN Masks help: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS CoV-2 https://t.co/upS95Zoip1 Analyses best fabrics. Imagine sneeze on T-shirt vs. skin. Fewer particles hit skin. EVERYONE:"EWWW." It's the same. #COVID19 #MaskUp

Jul 30, 2020 · 1 like · 152 followers View post →

Jd Rohitkumar

@Rokumarj · X

RT @ACSNanotation: Testing the filtration efficiencies of #nanoscale aerosol by cloth mask materials used to slow the spread of #SARS-CoV-2…

Jul 22, 2020 · 4 shares · 170 followers View post →

Galo Soler Illia ⭐️⭐️⭐️

@dr_kuato · X

RT @ACSNanotation: Testing the filtration efficiencies of #nanoscale aerosol by cloth mask materials used to slow the spread of #SARS-CoV-2…

Jul 22, 2020 · 4 shares · 10,428 followers View post →

John Sam

@JohnSam57668631 · X

RT @ACSNanotation: Testing the filtration efficiencies of #nanoscale aerosol by cloth mask materials used to slow the spread of #SARS-CoV-2…

Jul 22, 2020 · 4 shares · 778 followers View post →

Gary Beane

@pollinus66 · X

RT @ACSNanotation: Testing the filtration efficiencies of #nanoscale aerosol by cloth mask materials used to slow the spread of #SARS-CoV-2…

Jul 22, 2020 · 4 shares · 2,026 followers View post →

ACS Nanotation

@ACSNanotation · X

Testing the filtration efficiencies of #nanoscale aerosol by cloth mask materials used to slow the spread of #SARS-CoV-2. Find out more in @acsnano: https://t.co/YsXxUBNeC8 https://t.co/pdYCVaQrAH

Jul 22, 2020 · 3 likes · 4 shares · 7,471 followers View post →

John Sam

@JohnSam57668631 · X

RT @gmseabra: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/A45Jz…

Jul 21, 2020 · 2 shares · 778 followers View post →

Gary Beane

@pollinus66 · X

RT @gmseabra: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/A45Jz…

Jul 21, 2020 · 2 shares · 2,026 followers View post →

Gustavo de M. Seabra

@gmseabra · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/A45Jzu3vva

Jul 20, 2020 · 2 shares · 564 followers View post →

Gary Beane

@pollinus66 · X

RT @quality_nmsph: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/…

Jul 9, 2020 · 1 share · 2,026 followers View post →

quality.nmsph

@quality_nmsph · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/XZG4D4P8UE by @ACSPublications #covid

Jul 9, 2020 · 1 like · 1 share · 45 followers View post →

Gary Beane

@pollinus66 · X

RT @NanoRegNews: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/mH…

Jul 9, 2020 · 2 shares · 2,026 followers View post →

John Sam

@JohnSam57668631 · X

RT @NanoRegNews: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/mH…

Jul 9, 2020 · 2 shares · 778 followers View post →

NanoReg

@NanoRegNews · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2 https://t.co/mHtX4d7g8r

Jul 9, 2020 · 2 shares · 4,865 followers View post →

Gary Beane

@pollinus66 · X

RT @tomgillpredicts: Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS CoV-2 https://t.c…

Jun 30, 2020 · 1 share · 2,026 followers View post →

Tom Gill

@tomgillpredicts · X

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS CoV-2 https://t.co/q5KcqgGeSu

Jun 30, 2020 · 1 share · 1,572 followers View post →

John Zak

@JohnZak4 · X

@GereJeff @DickyCummerband @ClarkeMicah @andyfree I haven't any seen studies suggesting effectiveness of cloth masks with respect to aerosol particles until these. They looked at combination of fabrics & multi -layered cloth but I wonder how it impacts breathability for the user. https://t.co/05bt8VjUGn https://t.co/S16G9k9o1A

Jun 29, 2020 · 1 like · 215 followers View post →

Filtration Efficiencies of Nanoscale Aerosol by Cloth Mask Materials Used to Slow the Spread of SARS-CoV-2.

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Efficacy of TOM BIHN Cotton Flannel Masks Against Aerosols

Evaluating Cloth Mask Efficacy Against SARS-CoV-2 Spread

Evaluating Mask Materials Against SARS-CoV-2 Aerosols