It's so refreshingly positive to see the introduction of @smartairfilters.bsky.social filters to schools be celebrated by local media & politicians. We are so grateful to Dr. Ciara Steele for taking time to educate students, staff & local politicians in her community about the importance of IAQ.

They also had Hepa at Davos. Covid isn’t over!

Our results indicate that extended periods spent in poorly ventilated classrooms may be a stronger driver of within-school transmission than individual contact rates.

We found that while close contact contributed to elevated risk (rate ratio 1.16 per doubling daily time, 95%-CI 1.01–1.33), time spent in shared classrooms and poor air quality had larger effects (RR 3.17, 95%-CI 1.96–5.17 and RR 1.90 95%-CI 1.23–2.94) respectively).

Of course the best prevention methods for cardiovascular risk post Covid is don’t get Covid 😷 www.bmj.com/content/bmj/...

New research paper on transmission of respiratory viruses in schools. Results - extended periods spent in poorly ventilated classrooms are a stronger driver of within-school transmission than individual contact rates. Solution - monitor air quality and ensure classrooms are well ventilated.

www.thelancet.com/journals/lan... “Since reinfections can trigger long COVID at any age, one obvious strategy would be prevention (ie, limiting the number of reinfections).”

‘Journalists covering teacher and student absenteeism without talking about COVID are ignoring an elephant in the room and gaslighting many people suffering from Long COVID and illnesses that may have developed from getting covid’

These findings reinforce an urgent message that children and adolescents can develop long COVID not only after an initial infection, but also after reinfection. The public health implications are substantial. www.thelancet.com/journals/lan...

Our Open Letter on clean air in schools, along with further concerns, has now been shared with all four UK Children’s Commissioners. Children spend ~8 hours a day in classrooms. Clean air should not be a luxury dependant on postcode.

"Airborne transmission dominated, ... whereas contact ... and direct deposition ... played minimal roles." They use the words "dominance" and "dominated". Those are strong words. Leaves little room for doubt. #COVIDisAirborne #COVID19 #COVID

IAQ performance standards are achievable, cost-effective, and supported by public health evidence. Creating infrastructure can achieve this at scale. A phased approach, informed by pilot projects and early adopters, overcomes inertia and facilitates compliance. www.sciencedirect.com/science/arti...

Airborne respiratory microflora can be used as a marker for airborne infection risk.Using the value in conjunction with pathogen sampling provides in-depth insights into the relative infection risk of a space, aswell as a clear marker which can be used to compare different pathogen sampling studies.

dgalerts.docguide.com/article/engl... Suggestive of and expected with immune dysregulation

Just another simple virus with complex sequelae ‘Thus, latent HSV-1 infection of the brain could contribute to neurodegenerative disease progression, and antiviral antibodies may represent a potential therapeutic strategy’

Incrementally the reason for increasing absence rates in schools could be long Covid in children

Individuals with higher UPF intake demonstrated a 20–50% greater risk of developing depressive symptoms www.emjreviews.com/gastroentero...

This is an outrageously retrograde step www.nytimes.com/2026/01/12/c...

Immune dysregulation by Covid proposed by ⁦‪@fitterhappierAJ‬⁩ in 2020 evidently contributing to increasing frequency of common infections. There is dissolution of the binary position of recovered vs LC rather everyone is affected to a varying degree archive.ph/2026.01.11-1...

How do you select an appropriately sized portable air cleaner for a room? TLDR: Imperial Units: CADR (in CFM) = 2/3 Floor Area (ft2) Metric Units: CADR (in m3/h) = Volume (m3) * 4.4

Here's an easy way to select a minimum clean air delivery rate (CADR) when you're shopping for a portable air cleaner (filter). For example, if my room is 15 ft x 12 ft = 180 sq ft, then I'd want a CADR of at least 120 CFM (cubic feet per minute).

‘It’s diabolical’: Donegal homeowners left frustrated in unsafe homes with inadequate compensation and shattered mental and physical health Awab’s law was enacted in the uk to prevent harms from living with mould after a tragic fatality. 100%redress now! www.irishtimes.com/video/video/...

Covid continues to cause hospitalisation morbidity and mortality As does Flu including paediatric deaths We can do more to protect ourselves and loved ones Use air purifiers masks avail of vaccination stay home when sick www.cidrap.umn.edu/covid-19/cov... www.cidrap.umn.edu/influenza-ge...

A long covid study reports fatigue was the most frequently identified symptom cluster, solely or with muscle and joint pain, cognitive symptoms, or shortness of breath. Other paired symptoms included loss of smell /taste,anxiety,depression and musculoskeletal pain www.cidrap.umn.edu/covid-19/stu...

It might be cost effective to invest in urban green spaces as mental health disorder rates decrease as vegetation index increases www.medscape.com/viewarticle/...

Road deaths Tragically 2025 190 2024 175 2023 184 2022 137 2021 124 2020 147 2019 140 2018 137 Tragically data shows significant increases in road deaths. Does Covid contribute to the rise? Research suggests so. usa.streetsblog.org/2025/04/16/s... journals.plos.org/globalpublic...

As an example of a livestream school district air quality dashboard, Boston excels. Click on the dashboard to see air quality in individual schools. This keeps parents, school boards, public health, and teachers informed that school air quality is safe - bostonschoolsiaq.terrabase.com

"Cleaning the air in hospitals and having more of a culture of mask wearing among healthcare staff makes a massive difference to infection control around viruses.” www.belfasttelegraph.co.uk/news/health/...

Covid damages immunity Protection still matters johnsnowproject.org/primers/sars...

We've had assemblies, but we've not sung in assemblies because again, we know that that's something that spreads it quite a lot. "We are rehearsing for nativities at the moment and Christmas performances and we know that singing in schools is one of the worst spreaders www.bbc.com/news/article...

The first three images lead to the third Clean Air in healthcare is possible Open window + HEPA=Clean air #FridayAirday @cleanairie.bsky.social @smartair.bsky.social

Love this environmental display air sensor - very cool x.com/safe_breathe...

The HSA Code of Practice for Indoor Air Quality is to protect employees' health through practical measures and to facilitate employers' compliance with legal requirements. It applies to all workplaces. The Code of Practice is available here: www.hsa.ie/eng/publicat...

The above advice is directed at protecting the Health and Safety of healthcare workers. We look forward to similar advice being issued to School Boards of Management for the Health and Safety of school staff and students.

Look what's new on the HSE website! This is a very welcome development, and a very useful resource provided by the HSE. Follow the link to see more detailed advice and recommendations. healthservice.hse.ie/staff/health... #CleanTheAir

@cleanairie.bsky.social #FridayAirDay

The new EU Directive, part of the Zero Pollution Action Plan, aims to reduce premature deaths from air pollution by 55 per cent by 2030. Ireland faces significant challenges in meeting these targets, with projected compliance levels of only 93 per epa.ie/publications/m…

Various indoor readings -from the readings in the first example it looks like more windows need to be opened. Ventilation can reduce CO2 levels and insure healthier air. #FridayAirDay #CleanTheAir @cleanairie.bsky.social

History of C19 infection is associated with a higher risk of incident cardiovascular events in some individuals. -Early identification and proactive management of risk factors -Comprehensive prevention strategies to address residual cv risks are needed academic.oup.com/eurjpc/advan...

We really really need cleanair in schools #cleanair @helenmcentee.bsky.social @cmoireland.bsky.social thetyee.ca/Analysis/202...

Workforce absences and losses are greater now. Study finds that C19 has created a new year round baseline for work absences that is similar to Flu season before the pandemic; policymakers should expand interventions to address the negative impacts of C19 on workforce jamanetwork.com/journals/jam...

The Mayor of London's rollout of HEPA filters in classrooms to improve air quality for children in schools shows real vision, leadership, and concern for children's health and wellbeing. Hopefully, it isn't long before Irish politicians recognise the numerous benefits of this policy. #cleantheair

‘And we're still seeing people suffering from long-term health consequences directly from COVID in the form of Long COVID. Also, we've seen a global uptick in other diseases which we didn't expect. So a global uptick in heart attack, and in stroke www.crick.ac.uk/news/2025-10...

"'Immunity debt' doesn’t exist, but immune damage does. Children are sicker now than pre-pandemic – many with disabling chronic illnesses. This cycle of harm can only stop when we accept reality – there’s no off ramp without cleaning classroom air." 👏 #cleantheair www.independent.ie/opinion/comm...

So honoured to participate in signing the pledge for healthy indoor air global call to action @UN... Highlights hearing from H.E. Mr. Ervin Ibrahimovic Deputy Prime Minister and Minister of Foreign Affairs on Montenegro’s implementation of live monitoring and improved IAQ

Here’s a link to the study. The lead author is Henry Oswin, former PhD student from that worked with me on Covid. He’s now doing a postdoc with Lidia Morawska. Both Lidia and Henry are excellent writers, so this is a particularly engaging and easy read. www.sciencedirect.com/science/arti...

For gods sake reduced CD4 T cells in children with long covid #Cleantheair Reduce transmission and re infection @michealmartin @jennifermccarroloneill owww.biorxiv.org/content/10.1...