Aurita K😷 #COVIDisAirborne(@EvitaKano) 's Twitter Profile Photo

The ultimate challenge: guess the co2 levels of an almost empty movie theater.

The theater was empty for at least 30 minutes. Me and two people arrived and 5 minutes later I took the pic.


The ultimate challenge: guess the co2 levels of an almost empty movie theater. 

The theater was empty for at least 30 minutes. Me and two people arrived and 5 minutes later I took the pic. 

#CovidIsNotOver #CovidIsAirborne #MaskUp #CovidCO2 #Aranet4
 #BalanceTonCo2
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چیفومی(@chifumi_k) 's Twitter Profile Photo


今朝の日比谷線。10時前。窓開けなし。満員ちょっと手前。モニター上方の黒いズボンの若い男性が、湿った咳をしていた2000ppm超の朝😔

#電車CO2 #covidCO2 #japan #Hibiyaline
今朝の日比谷線。10時前。窓開けなし。満員ちょっと手前。モニター上方の黒いズボンの若い男性が、湿った咳をしていた2000ppm超の朝😔
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David Elfstrom(@DavidElfstrom) 's Twitter Profile Photo

Kid's backpack measurements for a week. What's the difference that made it better? March break. No school.

Left: 2500 ppm from riding the school bus. High mid-day values 1200 ppm from an undersized ventilation system.

Right: 600-900 ppm in our home.

Kid's backpack #CovidCO2 measurements for a week. What's the difference that made it better? March break. No school.

Left: 2500 ppm from riding the school bus. High mid-day values 1200 ppm from an undersized ventilation system.

Right: 600-900 ppm in our home.
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そばにゃん(@kezaworm) 's Twitter Profile Photo

松のやで早めの昼食。朝定食扱いになるとお得。松のや行ったの何年ぶりだろう。700ppmで換気も優秀。

松のやで早めの昼食。朝定食扱いになるとお得。松のや行ったの何年ぶりだろう。700ppmで換気も優秀。
#covidCO2
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چیفومی(@chifumi_k) 's Twitter Profile Photo


左は13時ごろの三田線。水道橋駅付近。ガラガラで席半分しか埋まってないのにけっこう高い。窓開けは私が開けた1か所。
右は19時前の丸の内線。大手町駅付近。ちょっと混んでてこの高さ。

#電車CO2 #covidCO2 #japan #trainCO2
左は13時ごろの三田線。水道橋駅付近。ガラガラで席半分しか埋まってないのにけっこう高い。窓開けは私が開けた1か所。
右は19時前の丸の内線。大手町駅付近。ちょっと混んでてこの高さ。
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Maarten De Cock(@mdc_martinus) 's Twitter Profile Photo

“People are taking these sensors into their offices, favorite coffee shops, airplanes, and everywhere else and often sharing the results on social media, sometimes publicly shaming owners of venues where the readings are bad. This is a transformational change.”

“People are taking these sensors into their offices, favorite coffee shops, airplanes, and everywhere else and often sharing the results on social media, sometimes publicly shaming owners of venues where the readings are bad. This is a transformational change.” #covidCO2
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Rafa Fonoy 👨‍⚕️🩺(@rafoji) 's Twitter Profile Photo

mexico Medición en el restaurante Espresso Mágico en Mérida.

Gracias a esto se puede confirmar que la mejor opción es pedir para llevar, pues es un lugar mal ventilado, lo que hace que el riesgo de contagio de enfermedades transmitidas x el aire sea alto.

#covidco2 #covidco2mexico Medición en el restaurante Espresso Mágico en Mérida.

Gracias a esto se puede confirmar que la mejor opción es pedir para llevar, pues es un lugar mal ventilado, lo que hace que el riesgo de contagio de enfermedades transmitidas x el aire sea alto.
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そばにゃん(@kezaworm) 's Twitter Profile Photo

古谷楓と鶴ケ谷の魚べいに行ってきました。お寿司が分厚くて食べごたえがあります。ちょっと値上がりしたけど許容範囲です。換気も抜群550ppmで安全。

古谷楓と鶴ケ谷の魚べいに行ってきました。お寿司が分厚くて食べごたえがあります。ちょっと値上がりしたけど許容範囲です。換気も抜群550ppmで安全。
#covidCO2
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Tʜᴏʀsᴛᴇɴ Kᴜʀᴢ(@t_kurz) 's Twitter Profile Photo

Some may consider the workplace exposure limit for CO2 of 5000ppm as a bit too high.

But at yesterday’s , the exhibition «Vuillard et l’art du Japon» at the Fondation de l’Hermitage exceeded even that.

It was almost as if there was no ventilation at all.

Some may consider the workplace exposure limit for CO2 of 5000ppm as a bit too high.

But at yesterday’s #nuitdesmusees, the exhibition «Vuillard et l’art du Japon» at the Fondation de l’Hermitage exceeded even that.

It was almost as if there was no ventilation at all.
#CovidCO2
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Rafa Fonoy 👨‍⚕️🩺(@rafoji) 's Twitter Profile Photo

mexico Medición en la sucursal de Costco Mérida.

A pesar de tener la ventilación central funcionando,esta era insuficiente y sólo 1 de cada 30 personas aprox., usaban cubrebocas.

#covidco2 #covidco2mexico Medición en la sucursal de @Costco Mérida.

A pesar de tener la ventilación central funcionando,esta era insuficiente y sólo 1 de cada 30 personas aprox., usaban cubrebocas.
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そばにゃん(@kezaworm) 's Twitter Profile Photo

仙山線🐻 844M 普通仙台行
🏔山形17:06→17:54作並🇰🇵
E721系4連
各ボックス1人ずつ埋めて羽前千歳発車。
山形仙台の移動は作並まで仙山線、作並から市バス(フリパ)が最安😤。乗車券山寺分割で570円😘。鉄道閑散区間のみ利用で密を回避🍃😷。換気は400〜600ppmで安全。

仙山線🐻 844M 普通仙台行
🏔山形17:06→17:54作並🇰🇵
E721系4連
各ボックス1人ずつ埋めて羽前千歳発車。
山形仙台の移動は作並まで仙山線、作並から市バス(フリパ)が最安😤。乗車券山寺分割で570円😘。鉄道閑散区間のみ利用で密を回避🍃😷。換気は400〜600ppmで安全。
#covidCO2 #電車CO2
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Kayli Jamieson #COVIDIsAirborne(@wanderingkayli) 's Twitter Profile Photo

For reference, something I typed up last year to explain to others the benefits of CO2 monitors in assessing COVID risk in spaces. Outside air is around 450ppm I’ve found in Vancouver. The lower the number, the better.

For reference, something I typed up last year to explain to others the benefits of CO2 monitors in assessing COVID risk in spaces. Outside air is around 450ppm I’ve found in Vancouver. The lower the number, the better. #BCCO2 #COVIDCO2
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