#HEPA

Dr. Richard Corsi

CorsIAQ

Portable HEPA Filter Systems.1/ The cost of retrofitting EVERY public school classroom in the entire US w/ a portable HEPA air filter w/ CADR = 300 cfm is approximately $1

😷 The Socially Distant Countess 😷

VinylContessa

Lightfoot keeps blaming CTU for everything. Let’s look at the facts; select schools got hepa filters. Select schools got PPE. Select schools/teachers are being tested for COVID not the majority.

Jose-Luis Jimenez

jljcolorado

1/ On the need for RCTs for all evidence before it is believable at all.Prominent ppl from the health side say this often, e.g.:https://twitter.com/eliowa/status/1292331203983552512https://twitter.com/samhorwich/status/1292332130698014721Wi

Dr. Richard Corsi

CorsIAQ

9/ For schools without mechanical ventilation but operable windows, open 1 window and put a box fan in it blowing from outdoors in. Open a second window as far from

Dr. Richard Corsi

CorsIAQ

1/ The pdf link that was posted by @CDC on 2/12/21 appears no longer available. The Director of CDC was on @MeetThePress today and referred to the 5 mitigation

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,

Jose-Luis Jimenez

jljcolorado

1/ Localized extraction of aerosols in dentistryThis is the solution that makes the most sense by far to me, combined w/ ventilation and portable HEPA air cleaners. This type of

Dear Pandemic

DearPandemic

1/ Q: What can I do to “improve ventilation” in my house or my office? What does that even mean? A: We recently talked to environmental strategist and air quality

EndCoronaVirus.org

endCOVID19

Reminder: Covid is Airborne!Open windows, open doors, use fans, utilize high-quality filters in HVAC systems, reduce occupancy, reduce interaction time, move activities outdoors, use HEPA systems, measure CO2, and mask

Prof Cath Noakes 😷 💙

CathNoakes

Some ideas if you’re trying to improve ventilation- small openings are quite effective in cold weather - big temp difference = more flow- regular airing 10 min per hr can

AltFDA

alt_fda

Let’s talk about what we see here. These are obviously negative pressure rooms but they are designed by an asshole. #Thread here’s why.https://twitter.com/ctulocal1/status/1346924214327123970 Some basic lab air management science.

JT

ruckerfoad

one thing that has been surprisingly helpful for me during quarantine has been developing a regular cleaning schedule. the upside is that I feel some agency/control over my environment and

Dr. Richard Corsi

CorsIAQ

1/ SCHOOLS. A few days ago I watched the Director of the National Economic Council say we need children back in school so parents can get back to work. While

Joseph Allen

j_g_allen

TEACHERS. If you're heading back to the classroom soon, are concerned, and would like additional protections, I have 2 quick things you can do: Better masks Portable air cleaner w/

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,

Isaac Bogoch

BogochIsaac

1/#COVID19 transmission on a train:This study quantified the risk of infection based on duration and proximity to an infected person."Overall attack rate of COVID-19 in train passengers with close contact

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