#COVIDCO2

Jose-Luis Jimenez

jljcolorado

1/ Using CO2 indoors to monitor infection risk - Very good idea- Limitation: one limit (e.g. 800 ppm) does not work for all situations.- Preprint from: @ZheP_AtmChem & I: https://www.medrxiv.org/content/10.1101/2020.09.09.20191676v1-

David Elfstrom

DavidElfstrom

1. Thank you @normsworld and @TCDSB for undertaking this #COVIDCO2 study. Some observations below (Thread)https://twitter.com/normsworld/status/1361317932412915712 2. The sensor used was a ELSYS ERS CO2, a good choice because it also

Jessica Bassett

jessica_bassett

Short on #covidco2 readings in an elementary classroom in #UpstateNY. The teacher used an #Aranet4 to measure CO2 throughout the day. 1st reading, before students arrived, with windows closed. Reading

Dr. Alex Huffman

HuffmanLabDU

1/ A on some #CO2 measurements in my home, car, school *AND* details/instruction on how to use dry ice for DIY estimate of #ventilation rates at your home or

Parents United Against Unsafe Schools

Parents_Utd

How Do We Make UK Schools Safe? - A Thread@jljcolorado and @long_recovery joined us for last nights special presentation on measures we can take NOW to #MakeSchoolsSafe.Full video here:https://youtu.be/hx9oLZl10SY Video

David Elfstrom

DavidElfstrom

#COVIDCO2 readings in an Ottawa classroom. Never reached a steady state. At 3152 ppm every breath contains 7.2% of other people's breath . #DontShareYourAir #OntedClassroom has below 0.4 air changes

Ryan Hisner

LongDesertTrain

1/ Thanks to help from @Poppendieck & @CorsIAQ, I've used my @AranetIoT CO2 meter to estimate the # of air changes per hour (ACH) in my classroom. CO2 builds up

Lara 😷 #COVIDisAirborne

Iamgoingtosleep

List of activists fighting for good ventilation SARS-CoV-2 is transmitted through the air.The higher CO2 level, the more we are sharing our air.So, stay safe, wear a well-fitted mask and

Dr. Alex Huffman

HuffmanLabDU

1/x With #COVID19 cases skyrocketing all over the US, holiday meals are going to be very dangerous. To show the risks of meeting indoors I used an #aerosol box model

Dr. Alex Huffman

HuffmanLabDU

1/ Interesting paper showing high efficacy of portable HEPA #filtration to reduce aerosol concentration in a high school classroom during use.By very experienced German aerosol group Curtius et al.; via

mdholte, MD, MA (education)

mdholte

Covid-19 infections are starting to overwhelm hospitals. We have patients waiting in our ED hoping to get ICU beds, we have refrigerator trucks outside hospitals. We need every medical professional

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