Skip to main content


France is mandating clean air in the classrooms, requiring CO2 levels of 800 ppm. I hope this is rolled out in other countries. Apart from lowering #covid risks in the classroom, it will also address other respiratory issues. #CleanAir #COVID #SafeSchools

Lo, thar be cookies on this site to keep track of your login. By clicking 'okay', you are CONSENTING to this.