https://archive.md/DliGm
"We might be on the verge of an indoor air quality revolution, and it could be
among the most important public health victories of the 21st century.
Two events in the past few days have contributed to this moment: First, the
Centers for Disease Control and Prevention on Friday released a new
health-based ventilation target that can dramatically improve indoor air.
Shortly after, a less well-known but powerful standard-setting organization
called the American Society of Heating, Refrigerating and Air-Conditioning
Engineers (ASHRAE) boosted the CDC’s recommendations by releasing its own
enhanced ventilation standard, open now for public comment.
You might be thinking, “Is this really news?” Haven’t we been discussing the
importance of ventilation since it became clear that the coronavirus was
primarily transmitted through the air?
Yes, the CDC and other groups did call for higher ventilation rates. But they
failed to put out a target number. Without a specific ventilation standard,
that resulted in confusion and a lack of accountability. “Did you improve
ventilation?” is very different from “Did you improve it by a specific amount?”
The CDC’s new goal is at least five air changes per hour (ACH), meaning the
equivalent of all the air in a room is replaced five or more times within an
hour. For context, a typical home has less than 0.5 ACH. This represents the
first time
in history that the agency has set a ventilation target to address
respiratory infectious diseases."
Via
Future Crunch:
<
https://futurecrunch.com/good-news-homicide-education-sierra-leone-solar-china/>
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
