A community of educators empowering students to take climate action




Welcome to our collection of case studies! The stories listed below showcase some of the schools across the UK taking action against air pollution. We look forward to sharing more case studies with you as we hear from schools that have completed the framework and implemented their Clean Air Action Plans.


Are you one of these schools? We'd love to hear from you about any of the actions you've implemented - your story could feature here! Get in touch with us at [email protected].

< Back

Improving classroom ventilation at Henry Fawcett Primary School
Posted by : Lambeth Schools Air Quality Programme

Henry Fawcett Primary School, London




Henry Fawcett Primary School in Lambeth were concerned about ventilation. Several classrooms, halls and office spaces had few, or no, windows that opened correctly.  Assistant Headteacher Rachel Harrison says that “it wasn’t possible to ventilate these rooms, they felt stuffy all the time, and extremely warm in the summer, causing pupils to feel lethargic and irritable” and that “since COVID-19, staff and pupils are even more concerned about good ventilation, and some of these rooms felt unsafe”.


Therefore, as part of the Lambeth Schools Air Quality programme, the school identified window repairs as a physical intervention that could help air circulate better, improving student health and reducing their exposure to air pollution.




Through a simple internet search, a London-based window repair company called WMS Ltd. was chosen to carry out the repair of 26 windows at the school. The company were sent photos and videos of the window mechanisms in advance so they could better understand what materials would be required to repair the windows. During the summer holidays, all 26 windows were repaired over a 3-day period.


The University of Surrey carried out a study in the school to measure the impact of this intervention.  The study showed that repairing the windows allowed an increase in window opening and hence in ventilation rate of 12.5%. This resulted in an improvement in indoor air quality by reducing carbon dioxide by up to 40%. It is important to note that ventilation rates were low and any small increases in the ventilation rate showed as a large improvement when stated in percentage terms.




“The spaces where repairs have occurred now feel safer, fresher and staff and pupils using them are much more able to concentrate.”

– Rachel Harrison, Assistant Headteacher


repaired windows



If you would like to know more about Transform Our World, or any of our programmes, please get in touch.


Please detail your enquiry here

Thank you for submitting your enquiry! We are currently receiving a large number of enquiries and are trying our best to get back to people as soon as possible. In the meantime, you might find one of the following links helpful: 


Transform Our World Youth Summit

Access catch up content from the Transform Our World Youth Summit


As a Transform Our World user, you can access the content from the Transform Our World Youth Summit and catch up on the content across three themed days, looking at individual actions we can do, people in power we can influence and the importance of living our true values.  


Follow the links below and check out the timestamp guide to navigate the content.



Catch up on Action Day


Catch up on Power Day


Catch up on Values Day


General Transform Our World 
  • Are you a teacher? Learn about how to use the website here
  • Looking for teaching resources? You can find our collection of highly-rated resources here
  • Looking for something more long-term? Check out our featured programmes here
  • Want to see what other schools have been up to? Have a read of some case studies here
  • Alternatively, take a look at our FAQs and About pages as they might help to answer your question(s). 


All the best,  

The Transform Our World team

Transform Our World

is brought to you by