jeffgilchrist, to Pm
@jeffgilchrist@mstdn.science avatar

Indoor Air Quality: Wildfire Smoke & Cooking

With wildfire smoke season here, we all need to think about air quality inside where we spend most of our time. This article provides multiple examples measuring the air quality inside my home from wildfire smoke and cooking.

The web version of this article with nice table of contents and easy to share with others can be found here ( https://docs.google.com/document/d/1x0yA0ebo8HkNYCps_CZPqGE0-My_4toLiGSR9M-D7-w/edit?usp=sharing ).

Graph of PM 2.5 Wildfire Smoke Pollution Levels Inside & Outside House with significantly higher levels of PM outside and in garage, and higher levels of PM in unfinished sections of basement with very little PM in finished rooms and those with HEPA filters.
Graph from co2.click portal showing a massive spike in particulate matter (PM) levels past 50 ug/m3 on Christmas Eve. More info at: https://co2.click/

redbird, to random
@redbird@wandering.shop avatar

It looks as though carbon dioxide concentration isn't just a proxy measurement for ventilation: an article in Nature says that higher CO2 is an independent risk factor, because pH levels affect how long the virus lives in the air.

https://www.nature.com/articles/s41467-024-47777-5 (via Ruth Anne Crystal's Covid News and More)

DavidElfstrom, to random
@DavidElfstrom@masto.ai avatar

New ASHRAE 62.1-2022
addendum adds density correction (PDF: https://ashrae.org/file%20library/technical%20resources/standards%20and%20guidelines/standards%20errata/standards/62_1_2022_k_20240422.pdf) Most locations will increase.
Calgary at 1045 m will need 15% more outdoor air than before. Denver CO, 20% more.

DavidElfstrom, to random
@DavidElfstrom@masto.ai avatar

& CO2 Addendum ab (PDF: https://www.ashrae.org/file%20library/technical%20resources/standards%20and%20guidelines/standards%20addenda/62_1_2022_ab_20231031.pdf ) to ASHRAE Std 62.1-2022 (Ventilation & Acceptable Indoor Air Quality) provides maximum CO2 levels for the minimum ventilation requirements.
Example: 600ppm + Outdoor (420ppm)= 1020 ppm max for classroom

This is for code MINUMUM ventilation, which in most cases have not changed for many years. It's not for airborne disease control.

PieterPeach, to random
@PieterPeach@mastodon.social avatar

Ventilation can reduce exposure to respiratory viruses in indoor spaces.

“Steps for cleaner air to prevent the spread of respiratory viruses can be taken any time, especially when:
• Respiratory viruses are causing a lot of illness in your community.
• You or those around you were recently exposed to a respiratory virus, are sick, or are recovering.
• You or the people around you have risk factors for severe illness”

https://www.cdc.gov/ncird/whats-new/ventilation-respiratory-viruses.html

soveryoleary, to random
@soveryoleary@mstdn.social avatar

https://www.texasobserver.org/long-covid-texas-clearing-the-air/

👋 “Long COVID and its myriad manifestations … can literally happen across a lifespan…no demographic group [is] immune.”
🦠 ”COVID-19 is an virus…investment in infrastructure would not only decrease the risk of COVID and other airborne illnesses, but also potential future viruses and pandemics.”
🚨“Staying up to date on vaccines and can dramatically reduce the likelihood of getting ,”

Via @TexasObserver

😷

drjudystone, to Economics
@drjudystone@mstdn.science avatar

New: Should Be A Larger Focus In Our Fight Against via @forbes https://www.forbes.com/sites/judystone/2024/03/22/ventilation-should-be-a-larger-focus-in-our-fight-against-covid-19/

With thanks to Sarah Haines, Richard Corsi, Jonathan Rosen, Chang-Yu Wu

sheislaurence, to longcovid
@sheislaurence@mastodon.social avatar

Today Swedish brand is launching , a portable . https://www.kickstarter.com/projects/airinum/hale?ref=discovery. It claims to remove 99% of airbone particles incl. virus. There are no certifications like or for purifiers, other than , which doesn't give the same level of assurance. This piece of research from Aug22 is promising though https://pubmed.ncbi.nlm.nih.gov/35947419/, but Airinum stopped short of guaranteeing safety from for @longcovid sufferers. Thoughts? It would be a gamechanger for me

sheislaurence,
@sheislaurence@mastodon.social avatar

@Krise_DIY @longcovid what Airinum did tell me is that the rate or 'Clean Air Delivery Rate' () was 8.7 m³/h. The research I attached in my original post mentions ">99.97% at 7.1 ventilation volumes", but I cannot find the unit. If it is indeed 7.1m³/h, then it sounds like the Hale is exceeding the ratio.

cleanairstars, to random
@cleanairstars@mas.to avatar

“Bad air(…)promotes the spread of contagious disease, and not infrequently makes closing as a prevention necessary. Schools which have suffered such almost yearly loss of weeks have, after the introduction of good ventilation, been for years free from such interruption.”

-> 1888

https://x.com/mdc_martinus/status/1768950759180157103?s=20

whn, to random
@whn@forall.social avatar

Together, we can reduce the transmission of COVID-19 with a few key practices.

Firstly, wearing well-fitted N95 masks or better is crucial for protecting both yourself and those around you.

Enhancing ventilation by using ventilation and keeping windows open strategically can significantly improve airflow in indoor spaces.

For added safety, consider using portable HEPA or MERV13 (or higher) filters to reduce virus particles indoors.

whn,
@whn@forall.social avatar

Let's stay informed and proactive in our efforts to maintain healthy and safe spaces for everyone.

#COVID19Prevention #N95Masks #Ventilation #AirQualityMonitoring #StaySafe

bicmay, to random
@bicmay@med-mastodon.com avatar

"Guidelines that adhere to the highest standards of infection control might please purists in public health who don’t have to make policies for the real world. However, guidelines that seem to acknowledge that workers often don’t have paid sick leave and emergency child care, and that social interactions are important to folks, are more likely not only to be followed but to engender trust in public health authorities."

https://www.vox.com/2024/2/14/24073306/isolation-covid-guidelines-cdc-change

#publichealth #covid #isolation #ventilation #masks

luckytran, to random
@luckytran@med-mastodon.com avatar

There are many people who can't afford to take days off work even when they are ill. The CDC should be recommending that employers give workers paid sick leave, not making it easier for bosses to exploit workers by saying it's fine to work when you are sick.

PieterPeach,
@PieterPeach@mastodon.social avatar

@jinnijoon @luckytran absolutely, which is why we need an approach that not only includes masking, but also encompasses WFH where possible, reducing buildup of infectious respiratory aerosols in shared indoor spaces (https://cleanairstars.com/steps) @cleanairstars

DenisCOVIDinfoguy, to auscovid19
@DenisCOVIDinfoguy@aus.social avatar

🇺🇸 US: Those hospitalized with COVID-19 later at risk for several key symptoms.

A study of about 3 million US adults and 675,000 US children reveals that hospitalized adults and children with a positive COVID-19 test had 17% and 18% increased odds, respectively, of being diagnosed as having one or more long-COVID symptoms 31 to 150 days after their positive test.

@auscovid19

Source: https://www.cidrap.umn.edu/covid-19/those-hospitalized-covid-19-later-risk-several-key-symptoms

SpaceLifeForm,

@DenisCOVIDinfoguy @auscovid19

Like other things, such as MRSA, it is best to stay out of Hospital.

You can actually get sicker there.

alanrycroft, to Futurology
@alanrycroft@mastodon.world avatar

Why So Quiet about Long COVID?

A top US epidemiologist pierces the silence about the pandemic’s deeply destructive long tail

Two million Canadians reported symptoms of long COVID as of June. That’s 7% of the adult population

https://thetyee.ca/Analysis/2024/02/06/Why-So-Quiet-Long-COVID

cbarbermd, to random
@cbarbermd@med-mastodon.com avatar

“We’re still in a pandemic,” says WHO’s Van Kerhove. Per wastewater est, actual circulation is likely 2-20x ⬆️⬆️⬆️.
“THE VIRUS IS RAMPANT.”

We’re saying, “Please don’t drop the ball.” The virus is here. It’s evolving. it’s killing. It’s causing conditions.” With govts, “we need to ensure that they keep up surveillance, good communication, provide treatments, tests, & & that they improve .”- Van Kerhove.

@CDCgov IS ANYBODY HOME? What’s our plan?

DenisCOVIDinfoguy, to Japan
@DenisCOVIDinfoguy@aus.social avatar

🇯🇵Japan: "Alarming Surge in Japan’s COVID-19 Cases; 10th consecutive week that cases have risen, half of the infected individuals were 14 years old or younger."

@auscovid19

Source: https://japannews.yomiuri.co.jp/society/coronavirus/20240202-166478/

SpaceLifeForm,

@DenisCOVIDinfoguy @auscovid19

I have not checked the there recently, but I will bet thst it has been cold, everyone is staying inside, with little

PapyrusBrigade, to random
@PapyrusBrigade@mstdn.ca avatar

We have the tools!

If you feel you are particularly at risk from drinking untreated water, take precautions: wash your hands and drink from your elbow.

If high risk and sick from drinking untreated water, ask your doctor if medication is right for you.

Please be kind to those who choose to filter their water. You do you.

In hospitals we require you to use a mesh bag (“medical mesh”) to treat water. Nosocomial infections? Oh well.

Lorrrraaaaine, to random
@Lorrrraaaaine@zeroes.ca avatar

Why Can Never Be 'Just A Cold' - by

https://www.donotpanic.news/p/why-covid-can-never-be-just-a-cold

I’ve been procrastinating for months drafting an email in which I “casually” wanted to add a few articles &

This will definitely be one of them

Lorrrraaaaine,
@Lorrrraaaaine@zeroes.ca avatar

https://itsairborne.com/intro-to-monitoring-co2-20f191dd8f60
this piece by @joeyfox makes the cut because people do not fundamentally understand air

Because this is an issue, engineering is pretty🗝️

If I had been a teacher, I’d have been the worst.. assigning loads of homework

Keeping it to 10 is going to be a feat..

c_9, to hvac
@c_9@mstdn.ca avatar

Remember all that awful wildfire smoke? And how it was so bad that you could smell it indoors? Well, the wildfires are coming back. And we need changes to how indoor air is regulated so that we can protect our most vulnerable people from it.

The Ontario Society of Professional Engineers is looking to get the word out about the Clean Indoor Air Act. Click on the link to learn more and reach out to your MPP.

https://ospe.on.ca/advocacy/ontario-society-of-professional-engineers-ospe-calls-for-support-of-clean-indoor-air-act/

PieterPeach, (edited ) to random
@PieterPeach@mastodon.social avatar

Submission to the Commonwealth Government COVID-19 Response Inquiry by Prof Lidia Morawska, Prof Guy Marks, Prof Fay Johnston, and Dr Bill Dodd on behalf of the Centre for Safe Air
https://safeair.org.au/download/1808/?tmstv=1705276459&mc_cid=912d33dab9&mc_eid=c3bd4d4886

itnewsbot, to Camping
@itnewsbot@schleuss.online avatar

Fan With Automatic Door Is Perfect For Camper Vans - Ventilation fans are useful for clearing stuffy or stale air out of a space. Howev... - https://hackaday.com/2024/01/17/fan-with-automatic-door-is-perfect-for-camper-vans/

EricCarroll, to random
@EricCarroll@zeroes.ca avatar

My furnace has failed.

I get to have a bunch of people in my house shortly to replace it before the Big Ontario Freeze descends on Saturday.

I feel like - I am having a constant dialogue with my threat & risk assessment module.

I will have to treat my home as a biohazard environment for most of a day.

& HEPA & oh my.

Replacing a furnace on a pipe-busting deadline is complicated & stressful.

Doing it while in today's world is 10x more complex and 100x more stressful.

If you recall my sailing analogy, we have to have a formal family safety briefing & contingency planning before it all gets started.

Then we have to maintain safety situational awareness while working a task on a deadline.

PieterPeach, to random
@PieterPeach@mastodon.social avatar

Thankyou @VicGovDH for stating something that is now widely recognised. If you are one of those individuals (particularly health professionals) that doesn’t yet recognise this it’s time to explore the cognitive blocks preventing you from moving forward with scientific consensus.

ottaross, to random
@ottaross@mastodon.social avatar

The first time I was going to build a Corsi–Rosenthal Box I accidently built a Creutzfeldt–Jakob Box, and we didn't know what the hell we were even doing for weeks.

The second time it turned out I had the plans for a Dunning-Kruger Box but I persevered anyway, and it turned out brilliantly. Everyone said I was an idiot but they just didn't understand how amazing I am.

JudgyGigi, to random

So I am in a group text with 8 high school friends ( 50 year reunion coming up!) one common theme from all of them - except me and 1 other - is “colds” “flu” bronchitis” “allergies” and “RSV”. (All self-diagnosed) Is there a gentle, funny way to remind them to wear a mask, and maybe buy a HEPA filter- I mean , the bare minimum!? I don’t want to preach you understand.

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