#Filtration

Arsenio Mataka

arseniomataka

These are indoor air readings. I benefit from @IQAir HVAC filtration system. Same old story. Those with financial resources can shield themselves from impacts, while others are left to suffer.

Lloyd Armbrust

larmbrust

Why Hospitals & CDC are still rationing N95s: "It's a highly engineered device and not everybody needs that"Most people don't realize that even professionals require a 15-min 'fit test' with

PriyankaPulla

PriyankaPulla

New story: I report on what @tifrarnab calls The Great Mask-erade, the profusion of fake, poor quality N95 respirators flooding the Indian market:https://thewire.in/health/covid-19-counterfeit-n95-masks-cdsco-bis-standards Things I learnt w

Sarah McManus

SarahAMcManus

I'm using the @microcovid tool (https://www.microcovid.org/ ) to help decide whether to get a dental cleaning, and I'm not quite sure how to put this in as a custom scenario...

Orla Hegarty

Orla_Hegarty

[Thread] So why does ventilation matter so much in #Covid19 suppression? Covid-19 is a disease caught by inhaling virus particles in the air 1/ the closer you are to an

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

Jose-Luis Jimenez

jljcolorado

1/ AIR CLEANERS: recommendations from the scientists of what to use and what to avoid 2/ More details about how to remove the virus from the air (best ventilation, otherwise

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/

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

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

Marwa Zaatari

marwa_zaatari

My school installed an electronic air cleaner system (EAC), what should I do? 1) Ask for the following (part 1):-Make/model of the system-What is the basis to choosing the number

Joseph Allen

j_g_allen

The GOOD: CDC supports improving ventilation in schoolsThe BAD: it's buried in their new guidanceThe SOLUTION: let's unbury it and make sure every school knows about it!--thread--https://www.cdc.gov/coronavirus/2019-ncov/community/s

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

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/ Just gave presentation to an advisory board and stressed this point. The first and BIGGEST bang for buck in layered risk reduction is EVERYONE wearing a mask indoors. Not

Dr Noor Bari (Miasma Medic)

NjbBari3

@BorisJohnson There is something wrong with you.It is negligent to force school attendance, without full mitigation, with an airborne disease that causes chronic disease in children and can kill their

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