#HEPA

Jose-Luis Jimenez

jljcolorado

1/ Air cleaners: the good, the dubious, and the uglyWith pandemic & major contribution of aerosol spread, many ppl wanting “air cleaning devices” to reduce / remove virus. Unfortunately many

Marwa Zaatari

marwa_zaatari

1) About MERV 13 - upgrading filters to MERV13 is the cheapest and most consistent/ practical solution:For a 10,000 ft2 school buildings or 15 classrooms, it only costs $546/YEAR. This

Dr. Richard Corsi

CorsIAQ

1/ Ventilation of Schools. My experience working with public school districts for more than two decades is that classrooms are, in general, woefully underventilated (and that's before COVID-19 times!). Others

Dr. Richard Corsi

CorsIAQ

1/ This did not have to be.Over 100,000 Americans currently in hospitals with COVID-19 and over 210,000 new cases today. We are converging on and will soon surpass the 9/11

Someone, Somewhere

CapobiaNB

Just bought a HEPA respirator to round out 2020, money well spent This is my proactive suggestionhttps://twitter.com/CapobiaNB/status/1329040450880147462?s=20 I think the biggest things we've learned so far are that this virus

Dr. Richard Corsi

CorsIAQ

1/ "To prevent the virus from spreading, companies that needed employees to return to in-person work put up plexiglass barriers, implemented daily temperature checks and required workers to wear masks

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

Dr. Richard Corsi

CorsIAQ

1/ Clean Air Delivery Rate (CADR). The CADR of a portable filtration system is:CADR = f x Q.f is the fractional removal efficiency of particles that pass through a device

Cory Doctorow #BLM

doctorow

There's increasing medical consensus that indoor spread of covid takes place through floating aerosol particles. If your environs are warm and dry year round (like my place in San Fernando

Erin Bromage

ErinBromage

Hmmm. Boarding a flight for an urgent work trip. Thought I might look at the amount of recycled air inside the plane. Steadily increased from 600ppm to 1300ppm as the

David Elfstrom

DavidElfstrom

ASHRAE guidance on in-room air cleaners for reducing COVID-19 in the air (Jan 21, 2021)@ShellyMBoulder Link (PDF): https://www.ashrae.org/file%20library/technical%20resources/covid-19/in-room-air-cleaner-guidance-for-reducing-covid-19-in-ai

Dr. Richard Corsi

CorsIAQ

B117 is spreading in US but we have not seen the explosion yet. Brace yourselves. These outcomes in Italy & Israel should give pause, a motivation for tripling down on

Logan Mitchell PhD 🇺🇸

loganemitchell

One reason why #Covid19 is spiking in Utah & across the US is climatology. It happens annually this time of year & is entirely predictable behavior similar to other endemic

Aaron Derfel

Aaron_Derfel

1) In just the past four days, the number of #COVID19 outbreaks in Quebec schools and daycares has climbed by 15 across the province, reinforcing the importance of improving ventilation

Paula Olsiewski

polsiewski

I’ve seen a lot of questions about the importance of ventilation and the spread of SARS-CoV2. I have expertise in the science of indoor air quality & want to share

Dr Naomi Wolf

naomirwolf

1/Shocked by an interview with the wonderful @sarahr1979, chiropodist of Ontario, another @DailyClout Profile in Courage. Elderly patients are suffering wounds, infections, worse as telemedicine leaves them without proper care

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