Joseph Allen Profile picture
Nov 15 11 tweets 6 min read
The First Four Healthy Building Strategies Every Building Should Pursue to Reduce Risk from Covid-19
----
The Lancet Covid-19 Commission
Task Force on Safe Work, Safe School, Safe Travel
🧵 Image
#FirstFour

1. Commission (give your building a tune-up)
2. Maximize outdoor air
3. Upgrade filtration
4. Supplement with portable air cleaners Image
1. Commission or Recommission Building Systems Image
2. Maximize outdoor air Image
3. Upgrade Air Filters to MERV13 Image
4. Supplement with portable air cleaners, where needed Image
The #FirstFour represent key actions that represent the most effective, fundamental steps toward promoting healthier indoor environments and reducing the risk of airborne infectious disease transmission indoors. Image
Why act?

--> Airborne transmission is the dominant mode of transmission
--> Reducing inhalation exposure reduces risk
--> Ventilation and filtration are key strategies
-->There are benefits beyond COVID-19 Image
These #FirstFour are just the starting point Image
Thank you to Task Force members:
@CorsIAQ @ShellyMBoulder @linseymarr Cadet Pollock @drdavidmichaels Jones @meiralevinson Li Morawska @cleantechcities @MarissaVanry @apsmunro Chen Cao Grier Jones

/END/

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More from @j_g_allen

Nov 16
Important message from Boston Children’s Hospital on when to call your doctor, when to seek urgent care, and when to seek emergency care for RSV
—-
RSV: Important advice for our patients’ families
—-
🧵 Image
WHAT TO KNOW BEFORE COMING FOR CARE Image
When to call your primary care provider Image
Read 5 tweets
Oct 29
“(Personally, I would’ve liked to have seen schools open nationwide in fall 2020, with additional focus on rapid testing and improved ventilation.)”@dwallacewells

Yeah, same exact for me. The path to keeping schools open was so freaking obvious.
Read 4 tweets
Oct 28
There’s this false notion that a healthy building is at odds with energy efficiency. We actually have existing technologies that allow us to conserve energy while improving indoor air quality.
🧵

bloomberg.com/news/articles/…
—> We need to upgrade our filters to a higher standard, and these can be deployed without an energy penalty.
—> We can have higher ventilation rates, and instead of releasing that treated air-conditioned air out into the environment, we can recapture some of that with energy recovery ventilation.
Read 6 tweets
Oct 25
SCHOOLS: I'm presenting today for a State DPH on steps schools can take on ventilation. Re-sharing some things I hope people find helpful (all available since summer 2020)

Simple #HealthyBuilding strategies: more ventilation, better filtration, portable air cleaners, VERIFY
🧵 Image
But, as I've been saying since March 2020, you can't just say 'more outdoor air' without giving a specific target. My recs is 4-6 ACH. Image
How can I determine if my classroom is meeting these targets? We have a simple 5-step guide for how to do this. Image
Read 7 tweets
Oct 16
This is an example of the reality that we really did know just about everything about transmission very early in the pandemic. A short thread:
Feb 9, 2020 - airborne, ventilation, filtration, portable air cleaners...

March 4, 2020. repeat of my Feb 2020 article essentially, but this time for US audience. (NYT rejected this piece in JANUARY 2020. Took me another 6 weeks to convince them...)
nytimes.com/2020/03/04/opi…
Read 17 tweets
Oct 12
It was a day
Read 5 tweets

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