Cam · @thoughtsofawho
51 followers · 550 posts · Server mas.to
Is this UVGI at MacDonalds? Is it likely to be doing much? Seems to only cover a very small volume of air.
CO2 (at <50% occupancy) was 700-800ppm.
#iaq #indoorairquality #uvgi #cleanair #cleanairtechnology @cleanairstars @joeyfox @DavidElfstrom @robynschofield3 @akm5376
#cleanairtechnology #cleanair #uvgi #indoorairquality #iaq
Jette Po · @White_Bite
961 followers · 2675 posts · Server mas.toRT @TaNaishaJ@twitter.com
1/8 "#Ultraviolet #germicidal #irradiation (#UVGI) is known to #inactivate various #viruses and #bacteria, including #SARSCoV2, and is widely applied especially in #medical facilities."
#COVID19 #CovidIsNotOver #COVIDisAirborne
https://pubs.acs.org/doi/10.1021/acs.estlett.2c00807
An abstract thread 🧵...
🐦🔗: https://twitter.com/TaNaishaJ/status/1619471239244050432
#COVIDisAirborne #CovidIsNotOver #COVID19 #medical #sarscov2 #bacteria #viruses #inactivate #uvgi #irradiation #germicidal #ultraviolet
David Elfstrom · @DavidElfstrom
1752 followers · 91 posts · Server masto.ai"Germicidal UV lamps: A trade-off between disinfection and air quality"
Modeling shows that with poorly ventilated spaces, #UVGI can create secondary compounds, some that may be harmful.
My take: Best to add UV to spaces with at least moderate #ventilation & #filtration, not as a substitute.
New from Zhe Peng, Shelly L. Miller & @jljcolorado https://pubs.acs.org/doi/full/10.1021/acs.estlett.2c00599
#uvgi #ventilation #filtration
David Elfstrom · @DavidElfstrom
1663 followers · 77 posts · Server masto.aiUpper-room #UVGI (Ultraviolet Germicidal Irradiation) is the most #EnergyEfficiency method for reducing risk in crowded spaces with tall ceilings. /3
David Elfstrom · @DavidElfstrom
879 followers · 36 posts · Server masto.aiUntil it's widely accepted that #COVIDIsAirborne AND we have widely implemented the triad of engineering indoor controls of #ventilation, #filtration, and #UVGI this won't end.
The analogy is municipal water treatment and sewage treatment to stop cholera.
#covidisairborne #ventilation #filtration #uvgi
David Elfstrom · @DavidElfstrom
879 followers · 36 posts · Server masto.ai
For #TwitterMigration my #DoAllTheThings infographic and hashtags for #engineering controls in a small commercial building to address #COVIDisAirborne:
#maskup #respirators #N95 #ventilation #filtration #IAQ #HEPA #CorsiRosenthalBox #UVGI #FarUVC #CO2 #COVIDCO2
#twittermigration #doallthethings #engineering #covidisairborne #maskup #respirators #n95 #ventilation #filtration #iaq #hepa #corsirosenthalbox #uvgi #faruvc #co2 #covidco2