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Clean Air Classrooms #CleanAirForLife

@cleanairclassrm.bsky.social
5.2K followers 1.4K following 646 posts

#CleanAir #IndoorAirQuality #HealthyLearning #N95 #VaccinePlusPlan #CO2Monitor #DisabilityAccess Allied Health & Building Profession Led Founder @mishwoz.bsky.social Information for UK schools & parents tinyurl.com/CleanAirClassroomResour…

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Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 12/12/2025
☝️ #Ventilation + #AirFiltration @vsmacdonald.bsky.social @naht.org.uk @neunion.bsky.social @ukhsa.bsky.social Fix broken buildings Schools, Healthcare Invest in #HealthyBuildings Protect the most vulnerable
Nursing Notes
By Florence Nightingale 
Excerpt quote 
" Health of the houses

There are 5 essential points in
Securing the health of houses
1.Pure air
2.pure water
3.efficient drainage 
4.cleanliness
5.light

Without these no house can be healthy, and it will be unhealthy just in proportion as they are deficient.

#CleanAirClassroom
#CleanAirHealthcare
#CleanAirAtWork
#CleanAir is a #HumanRight
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Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 29/11/2025
Pandemic #PublicHealth Implications 🌐 Governments & @who.int must commit To Regulate & Improve #IndoorAirQuality Prevent spread of VIRUSES Work for #HealthyBuildings Interesting research Implications of Flu &+other viral infections to mum & foetus www1.racgp.org.au/newsgp/clini...
new research on influenza A shows the virus behaves very differently in the bodies of pregnant and non-pregnant mice.
 
Study co-author Professor John O’Leary from Trinity College, Dublin, said the findings represent a landmark advance in the understanding of viral infections and pregnancy.
 
‘The discovery of an influenza-induced “vascular storm” is one of the most significant developments in inflammatory infectious diseases over the last 30 years,’ he said. ‘[It also] has significant implications for other viral infections, including COVID-19.’We found a dramatic difference in these inflamed blood vessels, which can seriously affect how much blood makes it to the placenta and all the organs that help support the growing baby,’ he said.
 
‘We’ve known that flu infection in pregnancy results in an increased risk of babies being smaller and suffering oxygen starvation.
 
‘Our research shows the critical role that the vascular system could be playing in this, with inflammation in the blood vessels reducing blood flow and nutrient transfer from mum to baby.’
 
While the researchers did not directly measure blood flow, the study found an increase in biomarkers for oxygen starvation in the fetuses of the flu-infected mice.
 
Pregnancy is believed to affect influenza severity, as the placenta secretes proteins and releases fetal DNA into the mother’s blood that can cause underlying inflammation; influenza infection may tip that underlying inflammation in the mother’s body into a full-blown systemic inflammatory event.
194
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 12/11/2025
The 🌐 pledge for #HealthyIndoorAir Sign the pledge www.airclub.org
Screenshot 
Of website 
https://www.airclub.org/
Section to ' view and sign the global pledge for healthy indoor air ' Screenshot of pledge document
031
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 06/11/2025
🇦🇺 Academy of Science #IndoorAir #IAQ The science of indoor air & Pathways to improve Indoor Air Quality In Australia November 2025 Report www.science.org.au/supporting-s...
Screenshot cover page to Australian Academy of Science 

Indoor Air
The science of indoor Air 
& Pathways to improve indoor Air quality in Australia
24922
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 22/10/2025
#HealthyTools #HealthySchoolBuildings Lessons to learn 🇬🇧 Govt must value kids #RepairTheAir PART of structure Make schools buildings Safe www.theguardian.com/uk-news/2024... #CO2Monitors audits will reveal extent of the problem But this alone will not solve the problem #MandateIAQ
Screenshot Guardian Article 2024
1.5m children in England studying in unfit school buildings
1137
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 22/10/2025
🇬🇧 #UkCovidInquiry 2025 #CovidIsAirborne Wednesday 22Oct 10am Former @rcpch.bsky.social Royal College Paediatrics & Child Health president Prof Russel Viner & CURRENT Chief Scientific Advisor (including Engineering!) 🇬🇧 Dept For Education Professor @cathnoakes.bsky.social Of engineering
Screenshot timetable 
Uk COVID Inquiry

Wednesday 22Oct 2025
10am

Former @rcpch.bsky.social
Royal College Paediatrics & Child Health president 
Prof Russel Viner
&
CURRENT 
Chief Scientific Advisor (including Engineering!)
🇬🇧 Dept For Education 

Professor 
@cathnoakes.bsky.social 
Of engineering
141
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 19/10/2025
Download a copy of the report thriveiaq.com/our-impact/s...
Screenshot Thrive IAQ website access to Australian IAQ report
" The data represented in this report is helpful in:
-Providing insights into the range of IAQ conditions in different buildings over time 
-highlighting some of the key contributors to and impacts of poor indoor air quality 
-quantifying the importance of source control, ventilation and filtration as strategies 
-Presenting multidisciplinary approaches to study design and implementation 
-Providing solutions or strategies that could be applied to buildings in different classes
055
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 05/10/2025
This is a WHO publication in 2022
Screenshot, acknowledgement page WHO
000
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 30/09/2025
@jljcolorado.bsky.social @kprather.bsky.social @ukhadds.bsky.social @cathnoakes.bsky.social @robscot.bsky.social @johnwenger9.bsky.social @orla-hegarty.bsky.social @geoff-hanmer.bsky.social Thoughts on a WHO 2022 publication ? ( Excerpt CO2 section....recommended ventilation rate minimums?) 👇
Screenshot excerpt section on Natural Ventilation Screenshot excerpt section natural ventilation rate ...' it should be noted that increasing ventilation in areas with polluted ambient air without proper filtration and air cleaning may increase indoor concentrations of pollutants from outdoor sources and thus occupants exposure to them 'Screenshot excerpt section on mechanical ventilation strategies
330
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 30/09/2025
Every Child Deserves A #CleanAirClassroom #HealthyIndoorAir 'Measures to reduce risks for children's health from combined exposure to multiple chemicals in indoor air in public settings for children ' @who.int publication May 2022 www.who.int/europe/publi...
Front cover

'Measures to reduce risks for children's health from combined exposure to multiple chemicals in indoor air in public settings for children '
With a focus on schools kindergartens and day care centres WHO regional office for Europe 
Acknowledgement of principal authors 
Tamas szigeti & Reka kakucs , national public centre Hungary 
Concept Inna Zastenskaya, Doroto Jarosinska WHO regional office for Europe, WHO Europe centre for environment & health
21510
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 03/07/2025
This is an interesting one DiY install Heat pump Heat and cool Via the sash windows NYC 🇺🇲housing project www.gradientcomfort.com/pages/case-s...
Excerpt from USA products "/Gradient" heat pump
310
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 01/07/2025
When do you start vaccination for Sars Cov 2 after flu But good point @marcveld.bsky.social #Cleanair WIN WIN For all airborne viruses Espec when spread in high density or ventilated schools ! ⬇️ illness absence Spread to family & implications on wider workday ⬆️ Healthy learning outcomes
Image Florence nightingale 
Nursing notes.
Health of houses.
5 essential points 
1.pure air
2 pure water 
3.Efficient drainage 
4.Cleanliness 
5. LightClean Air Classrooms flyer
Download from profiles
100
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 01/07/2025
CDC 🤷 Endemic Impacts By the way no child or parents wants to see their kid hospitalized for ANY virus or respiratory illness Kid also valued The ones with ' underlying conditions '. May need to archive CDC report historical records at some point @waybackmachine.bsky.social
CDC report paediatric C19 hospitalised 
U shape curve
Graphs paediatricd
200
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 01/07/2025
Thanks @profstevegriffin.bsky.social #TAPASNetwork Tackling Air Pollution in Schools International Seminars 2023 tapasnetwork.co.uk/internationa...
Screenshot 
Website to TAPAS website
Steve Griffin Leeds of Medical Research 
20.11.23
" Why a fresher perspective is needed o. Childhood COVID 19'Screenshot of slides 
2023
Steve Griffin presentation A U shape curve fig clinical risk for COVID
231
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 01/07/2025
🇺🇲 fluServ Net Comparison Paediatric Influenza Vs COVID pmc.ncbi.nlm.nih.gov/articles/PMC...
Comparison of influenza and COVID 19 associated hospitalisation among children < 18 years old 2020- 2021
200
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 30/06/2025
Mmmm ok enough to run an applicance during the day .....if right orientation etc Is it worth it?
Screenshot website 
Explaining 1 kilowatt hour power
And example applicances

1000watts /1 hour dishwasher 
300 watts / 3 hours refrigerator
100
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 30/06/2025
Powermtc I see better than an average air conditioning unit some fresh air MVHR But only 24m3/h = 6L/p/sec Not even 10L/p/sec Is tech improving on this front #HealthyHomes @robscot.bsky.social @davidelfstrom.bsky.social @katedes.bsky.social @orla-hegarty.bsky.social @wbahnfleth.bsky.social
Excerpt of pamphlet power mattuc fresh air inlet MVHR. 24M3/hr
200
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 29/06/2025
Public Health Matters #AirPollution #IndoorAirPollution #RespiratoryInfectiousDisease Affects our health Short term and long term link.springer.com/article/10.1...
Screenshot link
To research
Air pollution and respiratory Infectious diseases 
18 April 2024Screenshot 
Research article 
Air pollution and respiratory Infectious diseases
074
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 29/06/2025
#AirQualityMatters Tackle the source of the problem Good ventilation is essential Net zero Greening cities
Excerpt clean air classrooms flyer
" Why is air quality important"

Download a copy
See profile link
052
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 28/06/2025
To clarify, a 2025 presentation on key Recommendations to follow current 🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿 national regulations for compliance 1500ppm average comes from A @ukhsa report bsky.app/profile/clea...
Excerpt of UkHSA report 

Schools IEQ

Key recommendations .
"Implementation of current national regulations for ventilation" 

@cleanairclassrm comment shown in a red box markup stating " BB101 is out of date ! 1500ppm average is unacceptable....." Adequate "
100
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 28/06/2025
Thank you Maarten De Cock For pointing to @who.int document Ventilation in schools 2015 CO2 sensors @drmarianeira.bsky.social @mdc_martinus.bsky.social x.com/mdc_martinus...
Screenshot 
Maarten De Cock
Twitter post 2023

" In 2015 @WHO report CO2 meters were recommended ' to inform teachers about IAQ conditions and prompt them to take measures improving ventilation.....it is therefore even more incomprehensible WHO never mentioned CO2 monitoring in a COVID 19 Pandemic "Not only did the 2015 @who report recommend teachers use a CO2 monitor it also mentioned 
Insufficient ventilation is associated with increased infection risk due to accumulation of viruses 

CO2 is a key parameter
1000. Ppm max CO2 limit
Reliable NDIR monitors
111
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 28/06/2025
Good question @seetheair Are " they" CIBSE working group Relying on old findings? Or is it a select CIBSE group @drmattbutler.bsky.social BBC morning TV Post 2021 NB 🏴󠁧󠁢󠁥󠁮󠁧󠁿🇬🇧Building regulations Part F were further revised 2O22 ( no change)
Screenshot interview 
Shows 
Dr Shaun Fitzgerald 
Sept 2021 
On BBC TV national morning news
YouTube subtitles switched on

" Um compliance with modern building regulations are this number called....Number called 1500 parts per million daily average
110
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 28/06/2025
x.com/mjb302/statu...
Screenshot Dr Matt Butler post a
September 2021
Twitter 
Part 4
Dr Shaun Fitzgerald MA
PhD CEng FEI FCIBSE FREng Royal Academy of Engineering Silver Medal 2011
He's en Expert in the field of low energy natural ventilation in Cambridge University 

( also UK SAGE Advisor 
ExcCEO of Breathing Building company, manufacturer oof NVHR hybrid system )mechven
Screenshot twitter posts @mjb302
September 2021
Full interview ( 10 minutes) is here
Please share and RT widely 
Links to YouTube clip
COVID 19: schools and ventilation 

Tag
@cathnoakes @obj3ctivity @thepalpitations @drmeenalviz @njbari3 @dr2nisreenalwan @corsiaq @jimrosenthal4 @michaelrosenyes
@mishwoz Twitter post sept 3 , 2021

" #CovidIsAirborne 
#CO2Monitor thresholds 
Dr. Shaun Fitzgerald - NO!
Building regs/BB101 1500ppm threshd open a window 
IS NOT ACCEPTABLE in a PANDEMIC 
SAGE states CO2< 800ppm
SAGE states CO2> 1000ppm poor

WHO limit = 1000ppm


Requote of @mjb302 post YouTube clip 
" Part 5"
100
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 28/06/2025
😮💩 Key Recommendation UkHSA implement CURRENT 🇬🇧 guide Inadequate CO2 levels 1500ppm take action @profraymondagius.bsky.social @hazardscamp.bsky.social @peteuk7.bsky.social @cvcev.bsky.social @safeairschoolsuk.bsky.social @ukhadds.bsky.social @jljcolorado.bsky.social Reminder compare 🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿 to 🌐
Left side
Excerpts from England building regulations 
Part F- ventilation 
Airborne infection increased risk is only acknowledged from 1500 ppm
" Adequate" ventilation
132
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 28/06/2025
👀Read closer Key Recommendatns @Ukhsa Schools IAQ conf " Implementatn of current national guidelines" "(In)Adequate" hybrid mechvent 🤷 @peteuk7.bsky.social @cathnoakes.bsky.social @robscot.bsky.social @jksmith34.bsky.social @jljcolorado.bsky.social @seetheair.bsky.social @nathanwood8.bsky.social
Screenshot key Recommendations 
Ukhsa.
Implementation of current national regulations for ventilation 

See Dfe UK ventilation guide 
1500ppm adequate
131
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 28/06/2025
Ps FYI The results for Class Act RCT Never published 🤔 The UVC ( Philips brand) was not used in schools. Low ceiling & HSE exposure limit issues. UVC air recirc in lieu used . Very energy intensive circa 250m3/hr Only treat bugs VS Phillips 3000i air filtration Circa =/> CADR Low energy
Three units considered in Class Act School RCT 
Bottom right UVC not used in study
Screenshot post X Sept 2022
@rougematisse to indoor air quality schools talk 
https://www.eventbrite.com/e/indoor-air-management-of-airborne-pathogens-back-to-school-tickets-411431652147
110
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 25/06/2025
Fyi @kdbnicol.bsky.social We can do better Post occupancy evaluation Of Passive House Homes 1500ppn average is not healthy air! See paper within the sub thread bsky.app/profile/clea...
Screenshot of comments 
By prof Rob McLeod 
On a research paper
Analysis of passive house homes IAQ
000
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 24/06/2025
Good to know school B Had operable higher level windows Summer mixed mode linked to CO2 monitor Helpful It's in an urban area Figure 3 missing PM2.5 charts ? Summer PM2.5 window open measurements would be interesting to know
Extract article 
Re classroom average PM2.5
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Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 24/06/2025
" ventilate right if air tight" @phnetwork.bsky.social @passivhausinstitut.bsky.social @ipha.bsky.social Schools Air tight <0.6ACH School A 2013 CO2 1000-1500ppm School B 2015 MVHR mixed mode 700-1100ppm School B the better performer. Winter problematic ( Class y5e is good- Lower density?)
Extract article 2021 analysis primary school a and b, passive house design Comparison chart CO2 levels
Passive house certification 
School A supply to classroom extract  to corridors. 
School B mixed mode MVHR. Option to use windows
130
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 24/06/2025
This is too low Base level 6L/s/pers Is this really acceptable? 2022 Part F Building regs Acknowledges " airborne infection risk"
Comparison 
England Part F ventilation regulations 

With @seetheair.org global comparison chart ventilation guide & regulations
200
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 24/06/2025
Interesting. Could you clarify @jurajmikurcik.bsky.social @ecominimalnick.bsky.social @ipha.bsky.social To be certified passive haus What is the ventilation rate required for schools? Noted the example passivhaus UK schools show 🏴󠁧󠁢󠁥󠁮󠁧󠁿🇬🇧 Department for Education school design ventilation guide. Poor
Zoomed in reference to England Department for Education school ventilation design guidance
110
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 23/06/2025
Noticed there are some recent resources on @aivc.bsky.social website Example link to paper on the use of a predictive controller To manage energy usage and temperature For an all air ventilation system Used in schools + offices www.aivc.org/keywords/ind...
Resource section to AIVC website
All - air ventilation system
https://www.aivc.org/keywords/indoor-environmental-quality-ieq
110
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 23/06/2025
💨💨💨💨💨 CHESS project research Clean Air Health & School Sustainability See links in Subpost
Screenshot of CHESS research 
Boston Schools
Project website
020
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 23/06/2025
☝️Valid points Invest Healthcare Infrastructure @cvcev.bsky.social @disrightsuk.bsky.social @buds-disability.bsky.social @shh-uk.bsky.social @ukhealthclimate.bsky.social @rcphysicians.bsky.social @rcem.ac.uk #VentilationSystems #DiseaseResilient #SustainableHealthcare 👇 bsky.app/profile/robs...
Comments within re
UVC as adjunct to ventilation systems
132
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 23/06/2025
Also 🇬🇧 The BMA Brick by Brick report www.bma.org.uk/advice-and-s...
Cover page of , The BMA building for the future, Brick by Brick report 2024
Excerpt page 
On physical condition 
Title " healthcare estates are in urgent need of maintenance and modernization"Excerpt page of report
Medical professionals comment ' the hospital has mould in corridors water ingress through the ceilings, peeling floors and dark hallways. It looks more suited to the set of a post apocalyptic film than a place you provide healthcare'-Doctor working in secondary care "Excerpt intro
" Healthcare estates are in urgent need of maintenance and modernization"
222
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 22/06/2025
Am not up to date with current models on the market But I assume with tech advancement There will be decentralised MVHR models That can meet 800ppm🎯 25-30 bodies in 60m2 room When most countries seem to be heading this direction @nousaerons.bsky.social bsky.app/profile/robs...
Comparison 
UK department for education 2018
Ventilation guide
And global CO2 guidelines regulations country comparison chart by @seetheair.org
221
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 22/06/2025
Another manufacturer VES ventilation MVHR & hybrid @nousaerons.bsky.social You will also see these ones for 🇬🇧 🏴󠁧󠁢󠁥󠁮󠁧󠁿 schools Refer Department for Education BB101 2018 &therefore products made at this time, driven to compliance to a 2018 minimum standard / Tender criteria ves.co.uk/uploads/docs...
VES ventilation systems manufacturers cover brochure 
Title " technical guide building bulletin 101 update" i.e England school ventilation design guide BB101 2018
Excerpt page Indoor Air Quality 
England Department for Education 
CO2 ventilation guidance explained
BB101 
Natural Ventilated Teaching 
- Daily average concentration CO2 of less than 1500p during the occupied period 
- The maximum concentration should also not exceed 2000ppm got more than 20 consecutive minutes 

Mechanical ventilation
-where mechanical ventilation is used or when hybrid systems are operating in mechanical mode ...
Daily average of less than 1000 ppm...not more than 1500ppm for 20 minutes'Extract Brochure page showing pictures of VES heat recovery and hybrid approach products
111
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 22/06/2025
Extract from RIBA sustainability guide 2019 @nousaerons Welcome comments On #SustainabilityAssessment Tools & the relationship to #IAQ @geoff-hanmer.bsky.social @robscot.bsky.social @seetheair.bsky.social @wolfgangfeist.bsky.social @lloydalter.bsky.social
RIBA sustainability guide 2019
Section on
Sustainability assessment tools 
chrome-native://pdf/link?url=content%3A%2F%2Fmedia%2Fexternal%2Fdownloads%2F1000030675
010
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 21/06/2025
Oh I see V good start Please highlight Decentralised Sys 2kinds NVHR may only have fan power/may not hv heat recovry + "natural ventilation" is used with 🪟 summer Or May not have fan power Only heat recovery MVHR has heat recovery & fan power Differences #AirFiltration Pros cons etc
Screenshot Lets air website - explanation decentralised Sys
211
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 21/06/2025
Oh I see The roof cowl unit itself has no fans Works on pressure differential But can recover heat Is it influenced by cross ventilation windows 🪟 opening in summer/ closed winter? www.zigersnead.com/current/blog...
Excerpt from architect website 
Cross section of BedZED building
100
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 21/06/2025
If there is no air filtration In principle it's one( or two) fan dealing with extract and supply at the facade And one fan blowing stale air around the room An energy efficient set of fans in a box
Simple diagram
Explaining a Particular NVHR system 
As composed of fans only
100
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 21/06/2025
Oh that's interesting There is no HR exchanger. So it is recycling the existing heat within the room because its remixing stale air. R=Recycling Looking again at the diagram winter mixing , yes remixing stale air into the room With NV from 🪟 shut Do these unit have any air filtration system ?
Air Flow Strategies diagram 
From Breathing Buildings product brochure 
NVHR units
200
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 21/06/2025
👀ed at breathing buildg brochure @chrisiddon.bsky.social One product (of many) decentralized sys NVHR Natural Ventilation Heat Recovery 🪟 W Actuators? Why wld this be favoured OverMVHR G7 filter on inlet. 95% 🇬🇧schools PM2.5 > WHO AQ limits Thoughts @robscot.bsky.social @gwilymstill.bsky.social
Excerpt of one type of decentralized system product brochure 
Natural Ventilation Heat Recovery
211
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 21/06/2025
Yes I have noted this 😃 See also the GENERAL Notes " adequate" ventilation....." AIRBORNE" infection risk acknowledged after 1500ppm PS thanks @seetheair.bsky.social For the comparative chart on the right "
Extract England Building Regulations Part F 
"General : The aim of requirement F1(1):is to protect the health of occupants of the building by providing adequate ventilation. Without adequate ventilation mould and internal air pollution may become hazardous to health and the  risk of transmission of AIRBORNE infection is increased.....CO2 measurements..... action should be taken to improve ventilation if CO2 readings are consistently higher than 1500ppm" 
"
120
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 20/06/2025
It would also be interestg To find stats on ⬆️ school illness absence BOTH pupils & teachers in the last 5yrs Recognising ⬆️ work stress challenges @chrischirp.bsky.social @jneill.bsky.social @healthfoundation.bsky.social @rcphysicians.bsky.social @michaelmarmot.bsky.social @neunion.bsky.social
Excerpt from ACCESS website 
The big sick leave report 
2024Excerpt from ACCESS website
" Rising rates of sickness absence within the education sector.....as we see more teachers exiting the sector, understanding these underlying causes is essential for bridging gaps and fostering environments that promote mental and physical well-being.."
011
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 20/06/2025
Would you recommend investment In mechanical ventilation Decentralized system + #AirFiltratation ? And a reduction in density #ValueEducation @chrisiddon.bsky.social bsky.app/profile/clea...
Parent captured data

School classroom 
7256ppm
140
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 20/06/2025
Mould In schools too! #SAFEAir #airfiltration Will clear the air OF VIRUS BUGS MOULD AIRBORNE allergens Particulate matter #HealthyBuildings neu.org.uk/advice/healt....
Excerpt NEU website 
Mould in schools
010
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 20/06/2025
Public Health Prevention Is KEY "Why Treat people Only to return Them To conditions That are making Them sick" @michaelmarmot.bsky.social @healthfoundation.bsky.social @ukhsa.bsky.social 🤮 GIVE KIDS #CleanAirIndoors Fund to FIX School Buildg NEGLECT #HealthySchools bsky.app/profile/clea...
Public Health in Architecture 

Picture of Florence Nightingale 
Nursing notes 
Extract 
Health of the houses
5 essential points 
1.pure air 
2.pure water
3. Efficient drainage 
4.cleanliness
5.light

Without these 
No house cam be healthy 
Picture book cover
" The health gap"
Michael Marmot
100
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 19/06/2025
#CleanAirDay @ukhsa.bsky.social @ukhealthclimate.bsky.social @michaelmarmot.bsky.social @georgemonbiot.bsky.social @schoolsweek.bsky.social @profraymondagius.bsky.social How Clean is the Air You Breathe? 90%Of time Spent INDOORS #inhabitableSchools #IndoorAirQuality Record CO2 >7000ppm 🤮🦇💩
Chart by @nousaerons.bsky.social
Ventilation 
CO2 levels explained CO2 levels exceeding 7000ppm
In a UK school The Health Gap 
By Michael Marmot
022
Clean Air Classrooms #CleanAirForLife @cleanairclassrm.bsky.social · 19/06/2025
Today On #CleanAirDay @michaelmarmot.bsky.social @ukhsa.bsky.social @rcpch.bsky.social @rcphysicians.bsky.social @georgemonbiot.bsky.social Why Treat Children "Only to return them to Conditions That are making Them Sick" 🤮 Know Your Air #CO2Monitor #Ventilation #SafeAndHealthySchools
Screenshot book
The Health Gap
Improving health in am unequal world 
Author Michael MarmotCO2 level
In a UK school 
7256ppmFlorence Nightingale photo
Excerpt from nursing notes
"Health of houses
There are 5 essential points in securing the health of houses 
1. Pure air 
2. Pure water
3. Efficient drainage 
4. Cleanliness 
5. Light

Without these no house cam be healthy 
"
064