@NShrubs @TeacherArthurG I’ve been in rooms which have 1600 ppm CO2 ⬆️ ! Each room has CO2 meters & a thermo too! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikHaEB 5️⃣ https://t.co/3c3AFY0
RT @adriel_rose: Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
RT @adriel_rose: Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
RT @adriel_rose: Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
@SteveBarclay MPs and ministry buildings have clean air. It is needed in hospitals and schools, urgently along with all indoor public spaces. https://t.co/qEVnJlTbvB
RT @adriel_rose: Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
RT @adriel_rose: Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
RT @adriel_rose: Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
RT @adriel_rose: Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities https://t.co/5D29ahw0Kq
@DrJBhattacharya There are people out there who are afraid to ‘share air’ with other humans. Published research supports this ?? https://t.co/JflxdojwoG
RT @joabr: evento-experimento que *iniciou com 4150ppm CO2 e apitando* 🙈 e, *após todos de PFF2, caiu pros 407ppm, aí da foto*... quase uma…
evento-experimento que *iniciou com 4150ppm CO2 e apitando* 🙈 e, *após todos de PFF2, caiu pros 407ppm, aí da foto*... quase uma roça ao ar-livre! 😎 por [https://t.co/mJ7fuu6zwk], o ambiente confinado se tornou mínimamente saudável a partir de então... 🙏🤞
@oldfshndanne I try to keep the classroom below 800 ppm of CO2 . The HVAC has never been upgraded to 5 ACH 3 yrs into a pandemic! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikHaEB 5️⃣ https://t
@humblesauce1 In his case it was to measure the room CO2 concentration levels before and after his coworkers gather for meetings since some of them like to take off their masks while presenting https://t.co/EtOg1Ax8qZ
@nick_coatsworth 3/N👉🏻Clean HEPA filtered UV air works . See Devos ! Schools too! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikHaEB 5️⃣ https://t.co/3c3AFY0EeV 6️⃣ https://t.co/u6hax4dUL5 7️⃣ ht
@chantz_y @Fraserhealth Indoor air quality should have long been upgraded to <800 ppm of CO2 & least 5 Room vol changes per hour . 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikHaEB 5️⃣ ht
@RuthKapelus @TRyanGregory As far as no evidence for CO2 monitors being useful: really? https://t.co/fRNh2b2kd8
RT @thalesnemo: @prevenzione 1/2👉🏻Still with three windows and a door open with two fans running in a class of 25-30 persons in a recent b…
@prevenzione 1/2👉🏻Still with three windows and a door open with two fans running in a class of 25-30 persons in a recent building 1000-1200 ppm of CO2! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t2
RT @jljcolorado: 9/ CO2 serves as indicator of RELATIVE risk anywhere (e.g. a choir rehearsal with half the CO2 enhancement is twice as saf…
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
@kaizoman @YouAreLobbyLud @Mielgray @kelcsimpkins @united CO₂ levels are indicative of make-up air. While the study strictly only applies to pressurized aircraft, this is in line with other findings even on the ground. Estimating risk becomes then a questi
@MsJulieSLam @TogetherWeMask @FairwayMarket @3M @PPEtoheros CO2 as a Proxy for ventilation ,5 ACH +, should below 800 ppm! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikHaEB 5️⃣ https://t.co/3c3A
RT @jljcolorado: 1/ CO2 and COVID transmission Our paper (former preprint) is now published after peer-review in Environ. Sci. Tech. Lette…
RT @RougeMatisse: PS, @DroletRenee, il semble que cela a de l'allure👇🏼 bien que personne ne souhaite que les enfants gèlent. Depuis l'aut…
RT @RougeMatisse: PS, @DroletRenee, il semble que cela a de l'allure👇🏼 bien que personne ne souhaite que les enfants gèlent. Depuis l'aut…
PS, @DroletRenee, il semble que cela a de l'allure👇🏼 bien que personne ne souhaite que les enfants gèlent. Depuis l'automne 2020 que Covid-Stop, QS, le PLQ et le PQ demandent des purificateurs d'air portables. C'est refusé malgré l'avis positif du RQCP.
RT @Orla_Hegarty: CO2 & cognitive function: https://t.co/7wtImZQnw4 CO2 & infection risk : https://t.co/cFyOSOakrD
RT @Orla_Hegarty: CO2 & cognitive function: https://t.co/7wtImZQnw4 CO2 & infection risk : https://t.co/cFyOSOakrD
RT @Orla_Hegarty: CO2 & cognitive function: https://t.co/7wtImZQnw4 CO2 & infection risk : https://t.co/cFyOSOakrD
RT @Orla_Hegarty: CO2 & cognitive function: https://t.co/7wtImZQnw4 CO2 & infection risk : https://t.co/cFyOSOakrD
RT @Orla_Hegarty: CO2 & cognitive function: https://t.co/7wtImZQnw4 CO2 & infection risk : https://t.co/cFyOSOakrD
CO2 & cognitive function: https://t.co/7wtImZQnw4 CO2 & infection risk : https://t.co/cFyOSOakrD
RT @jljcolorado: 3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta pro…
RT @jljcolorado: 3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta pro…
RT @jljcolorado: 3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta pro…
RT @jljcolorado: 3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta pro…
RT @jljcolorado: 3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta pro…
RT @jljcolorado: 3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta pro…
RT @jljcolorado: 3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta pro…
3/ Este artículo científico explica detalles técnicos TDLR: probabilidad de contagio EN UN SITIO DADO siempre aumenta proporcionalmente al CO2 exhalado Pero sitios con vocalización y ejercicio, más tiempo, y menos mascarillas son mucho más peligrosos h
RT @RealSexyCyborg: @EarthOrgUK @JohnMu @CathNoakes It's a weak proxy for infection risk based on the number of people rebreathing the same…
@EarthOrgUK @JohnMu @CathNoakes It's a weak proxy for infection risk based on the number of people rebreathing the same air that assumes no N95 masks, HEPA, GUV. Despite all that, it's turned out to be a very useful tool. https://t.co/fCZnEj1Plu https://
RT @RougeMatisse: 3. Voici quelques études qui montrent que le taux de CO2 est un indicateur du risque d'être infecté par la Covid. https…
3. Voici quelques études qui montrent que le taux de CO2 est un indicateur du risque d'être infecté par la Covid. https://t.co/B7xaJgstQr
@jeanbarbeau2 1. Plusieurs études montrent que le taux de CO2 est directement lié aux risques de contagion. https://t.co/AAiwg8yRyz https://t.co/y5L9nYvUMN Je pourrais continuer.
RT @MA_Campano: 4/N Para ello, su procedimiento de cálculo está basado en la metodología de @ZheP_AtmChem y @jljcolorado ➡️ Planteada a par…
RT @TBM4_JP: すごい、元記事見失ってたのに😳
RT @TBM4_JP: すごい、元記事見失ってたのに😳
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
すごい、元記事見失ってたのに😳
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
RT @MinatoNakazawa: https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https…
https://t.co/EwRPLStHMG これの和訳のようだ 「研究によると」(英文ではResearch)からリンクされているのは2021年4月のニュース記事 https://t.co/QYsQCUqrYz で、元論文は https://t.co/10AjAskMp8
RT @jljcolorado: 53/ Para saber si hay suficiente ventilación, o para ajustar la apertura de ventanas (e.g. calor o frío afuera) recomendam…
@Elizabe58474310 @lithohedron @1create Naturally the system should have upgraded the HVAC with HEPA level filters and UV! NOT DONE1️⃣ https://t.co/IfsAXxsiz0 2️⃣ https://t.co/bUFPLhb4en 3️⃣ https://t.co/K4tEfE6mWn 4️⃣ https://t.co/t22zikHIu9 5️⃣ https://t.
@DonaldMBraden @TRyanGregory @AntiWarParty1 It should be at least 5 room changes per hour or less 800 ppm of CO2 ! Schools too! 1️⃣ https://t.co/IfsAXxJlB0 2️⃣ https://t.co/bUFPLhs7gn 3️⃣ https://t.co/K4tEfEnpYn 4️⃣ https://t.co/t22zikpzg1 5️⃣ https://t.co
Also leaving this here for @durhamcollege, let me need if you need more sources on how and why covid is not something to keep ignoring https://t.co/Lhdxdby3hi
@NeurauterWerner @Prebens @AnnMauseth Ja? Høyt CO2 nivå i et rom betyr at det er tung luft, høyere risiko for aerosoler i luften. Lukker du døren til et rom blir den fort 1000ppm. Ved god utluft holder det seg under 600ppm. Flere steder i utlandet anbefale
RT @SherOnHealth: The model was created by researchers at Imperial College London, the University of Cambridge and University of Leeds. The…
@nenrightjerger It *seems* that the risk of COVID infection as a function of CO2 level varies much (order of mag) depending on the type of environment and masking. https://t.co/ho0687FoKi (only skimmed)
RT @thalesnemo: @Chicagolady @denise_dewald CO2 is a proxy for ventilation. The standard is 6 RCH (room changes / hour ) Schools too! 1️⃣ h…
RT @thalesnemo: @Chicagolady @denise_dewald CO2 is a proxy for ventilation. The standard is 6 RCH (room changes / hour ) Schools too! 1️⃣ h…
RT @thalesnemo: @Chicagolady @denise_dewald CO2 is a proxy for ventilation. The standard is 6 RCH (room changes / hour ) Schools too! 1️⃣ h…
@Chicagolady @denise_dewald CO2 is a proxy for ventilation. The standard is 6 RCH (room changes / hour ) Schools too! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikHaEB 5️⃣ https://t.co/3c3AFY0Ee
@notkent @KashPrime @LadyScorcher It's a reasonable proxy https://t.co/BejmeKdTuj "The relative risk of infection in a given situation has been shown to scale with the excess CO2 concentration."
Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities by Peng and Jimenez https://t.co/Mx9XrMMvnC
@PSQ17266 @Kit_Yates_Maths 6 room volume changes per hour at a minimum! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikHaEB 5️⃣ https://t.co/3c3AFY0EeV 6️⃣ https://t.co/u6hax4dUL5 7️⃣ https://t.co
@joeyfox85 1/2 ➡️Source ? I’ve read 5 ACH ➡️5 room volume changes per hour.A typical classroom is about 12K feet^3 or 200 cfm of air flow will do. 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https://t.co/t22zikH
RT @curioshiki: CO2とコロナ感染リスク メモ Carbon dioxide levels reflect COVID-19 risk Science Daily https://t.co/lRS9t2W7LB CIRES/Univ.of Colorado Bo…
@Dogsinncoats @DrEricDing @Delta @AlaskaAir OMG a reading >3100 ppm of CO2 means you are breathing more that 5% of someone else’s breathe! The shear stupidity! 1️⃣ https://t.co/IfsAXxrKJs 2️⃣ https://t.co/bUFPLhawoP 3️⃣ https://t.co/K4tEfE5P6P 4️⃣ https
@Hansmajestaet1 Man vet ju aldrig hur många infekterade personer som är i samma rum som en själv. Eller om de är superspreaders. Jag ser Co2 mätningen som en proxy, en relativ risk. Har dessa men kan jaga fler från kontakter om du vill. https://t.co/unu
@daveanthony Idk if you've talked about this before but one of the biggest warning signs for an unsafe environment where covid is concerned is high CO² levels and portable CO² detectors can be purchased for relatively inexpensively, stay safe out there ht
@open_erv @JBuriak The use case for this isn't about measuring CO2 as a pollutant, but about measuring CO2 as a proxy for measuring Covid infection risk. https://t.co/RzH6N3lUWZ
@PPilecan @RemiSalomon Le niveau de preuve (RCTs) qu’on exige pour les médicaments, le meilleur qui existe pour l’évaluation du lien de causalité, n’est pas souvent requis dans d’autres domaines scientifiques, y compris sanitaires. Ce n’est pas nouveau. ht
@Oneliveu2 @jljcolorado @fly_BUR This NYT article is helpful and mostly in layman's terms. https://t.co/z5dLUCTLwo If you want some of the complicated information (and lots of math), here's a supporting study. The referenced PDF is particularly helpful. ht
"Indoor CO2 measurements by low-cost sensors hold promise for mass monitoring of indoor aerosol transmission risk for COVID-19 and other respiratory diseases" https://t.co/aRW7EjCjY5
RT @jljcolorado: 1/ CO2 and COVID transmission Our paper (former preprint) is now published after peer-review in Environ. Sci. Tech. Lette…