#MERV

Jeffrey Siegel

IAQinGWN

1/ There have been lots of questions about filtration and SARS-CoV-2. To understand how effective a filter is going to be, you need to know two things: the size distribution

Antoine FLAHAULT

FLAHAULT

1/10 - "To make indoor communal spaces safer, they need to be 'well-ventilated.' But what does that mean? We need to think about controlling the source of the virus indoors,

SFBART

SFBART

Let's talk air flow in BART cars: BART cars filter & replace inside air about every 70 seconds. This was the case before COVID-19 and is still now. Air is

Don Giller

thedonz5

Another long-winded thread!I'm preparing something that'll mean extremely little to the vast majority on the planet, but hopefully a lot to a very select few:The comedy team of Tom Patchett

David Zweig

davidzweig

THREADMy daughter is quarantined for 10 days bc she had a class with a teacher on Friday who tested positive*All students and teacher were in masks *Windows were wide open

Jeremiah Owyang

jowyang

Thread: How to keep Smoke out of your house (chime in):1-Check bathroom vent fans, smoke may be coming thru, If so, tape up with painters tape2 -Check fireplace, often smoke

drGarthK

DrGarthK

I recognize the successes of restrictions in some areas such as BC, but I am concerned that gyms and indoor dining are allowed without adequate enforced restrictions. In my opinion,

David Elfstrom

DavidElfstrom

CBC Marketplace and UofT's Dr Jeffrey Siegel tested 3 samples of 5 models of air purifier, including the DIY box fan with MERV-11 filter, which was better than the Dyson

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/ "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

erin, Ph.D😷🏡

emfundertaker

We all know this but the Governor of Nebraska J. Peter Ricketts has been and is buying the Nebraska Legislature, a political agenda, and state offices.Just a basic search through

JPM Science #BLM Anti-racism

yeipijotape

Our team studied the distribution of SARS-CoV-2 #RNA signal in a quarantine home with 2 #COVID19+ occupants. Viral transmissions can occur in homes where most people quarantine while recovering. Here

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

1/ Indeed true. And in a couple of weeks we will have a repeat for the holidays & add more suffering, death, and economic destruction on top of the current

Abhishek Mukherjee (@SachinAzharCT)

ovshake42

David Boon turns sixty.Everyone knows the story of record-breaking beer-guzzling, but few have recollected it in detail.I have tried to collate quotes and all that to provide a structure.But before

😷Pedagogues Tekhnoethicasaurus😷

dankrutka

EDUCATION LEADERS: Read @zeynep's article to keep educators & students safer.In short, we need less #HygieneTheater & more focus on ventilation since COVID-19 may spread via falling droplets AND floating

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