Welcome to our 🧵on clean indoor air! Each Monday we’ll post threads about indoor air quality (IAQ) and its significance to health. We’ll cover the composition of air, how to measure harmful elements, and how to improve unhealthy indoor air. 1/6
We can’t see or touch the air around us. However, it’s key to the planet and to life. It surrounds the earth and provides a protective, insulating cushion. It contains gasses vital to life: oxygen, carbon dioxide, water vapor and nitrogen. 2/6
Did you know our atmosphere is composed of 78% nitrogen and only 21% oxygen? These gasses support plants, animals and the nitrogen cycle, which keeps all life on earth in balance. 3/6
Outside air—or ambient air—makes its way into indoor air and carries with it pollutants, bioaerosols and particulate matter. Surprisingly, indoor pollutants can be 2 to 5 times higher than outdoor levels. Or even 100 times higher. 5/6
This is why healthy, clean indoor air is so important.
Join us next week to learn how we measure and evaluate Indoor Air Quality (IAQ). 6/6
Air also contains bioaerosols, floating microorganisms that stay aloft in the atmosphere. And it contains harmful chemicals from industrial contaminants and natural disasters such as wildfires. In high concentrations, these pollutants are unsafe. 4/6
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By @MRSmithAP for @AP:
“The high numbers of deaths from COVID-19, guns & other causes are difficult to fathom & can start to feel like background noise, disconnected from the individuals whose lives were lost & the families whose lives were forever altered”bit.ly/3wKfSNR
“There are many parallels between the U.S. response to COVID-19 and its response to the gun violence epidemic, says Sonali Rajan, a prof. at Columbia Univ. who researches school violence.
‘We have long normalized mass death in this country…’ she says,” bit.ly/3wKfSNR
“‘There’s been almost a sustained narrative created by some that tells people that these things are inevitable,’ says @meganranney,… who did gun violence research before COVID-19 hit. “‘It divides us when people think that there’s nothing they can do.’” bit.ly/3wKfSNR
Via @voxdotcom:
“On Thursday, @CDCgov recommended those living in communities w/ high levels of infection wear face #masks indoors in public settings, even though the federal mask mandate is no longer in effect after it was overturned by a federal judge.” bit.ly/3GbtGnm
“Research shows that #masks, if used correctly, can be a valuable tool for reducing the spread of the virus. But the CDC’s #mask recommendation for people living in areas w/ high risks of Covid-19 this week was met with mixed responses online…” bit.ly/3GbtGnm
“…Some have criticized the agency’s inconsistency in its #masking policy, while others tried to paint the CDC’s motives as political, pointing to the upcoming midterm elections…” bit.ly/3GbtGnm
Wondering about the different types of #Masks out there? What exactly is a #BetterMask, anyway? Check out this 🧵 for more details w/ our helpful visual guides here!
First up, NIOSH #N95 Masks
-Highest level of protection for disposable #Masks
-@NIOSH_NPPTL approved
-Head Straps
@NIOSH_NPPTL@NIOSH#KF94 / #KN95#Masks:
-KN95s Manuf. to Chinese GB2626-2019 standard
-KF94s Manuf. to Korean KMOEL 2017-64 standard
-@CDCgov warns: "About 60% of KN95 respirators in the US are counterfeit (fake) & DO NOT meet @NIOSH requirements."
-We verify all KN95s & KF94s we sell are genuine
If you are looking for official US government resources (incl. advice for improving fit, more on Int’l standards, other #masks like #N99, #N100, etc.), see the @CDCgov “Types of Masks @ Respirators” landing page here: cdc.gov/coronavirus/20…
“One study…found…#schools that required #masking had…37% lower incidence of #COVID19…Another study…found…high levels of #mask wearing among students helped keep…rate of in-school spread…to under 1%…as…cases were surging in the wider community.” n.pr/38W2Xf0
@mgodoyh goes on:
“Not masking could be disastrous for schools, says Julie Swann, a department head and professor at North Carolina State University who leads a #COVID19 forecasting team funded by the @CDCgov” n.pr/38W2Xf0
Adding handful (4) of tweets from experts on #Masks in #Schools 🧵here:
1st, former @Surgeon_General@JeromeAdamsMD reminds us #PPE good enough for doctors in the hospital can help mitigate spread in our schools, including high quality, fitted & authentic #N95#masks. 1/4
“Keeping child…cases down not only prevents COVID-19 from reaching children…but helps keep schools open & parents at work…Smart policies can manage the pandemic future and avoid a continued state in which the pandemic threatens to fill our hospitals.” bit.ly/38U3wpF
More:
“We are a group of public health researchers & physicians living and working on COVID-19 in each of the New England states. We call on NE governors – and governors across the country – to implement data-driven indoor #mask policies for everyone.” bit.ly/38U3wpF