In 2020, Panyaden International School innovated a cool and purified air system using sustainable environmental engineering, the first of its kind in Asia.

The Panyaden Fresh Air System was successfully installed and tested in the school’s secondary campus buildings to purify the indoor air quality, bringing the AQI value below 10 even when outside AQI is above 190. The results showed that the Fresh Air System provided a constant supply of fresh air, as the CO2 index inside the rooms remained much lower compared to standard air-conditioned rooms.

The Panyaden Fresh Air System was initiated to address the pollution and health risks arising from the smoke season in Northern Thailand and provide a zero haze and PM2.5 free (polluting particles in the atmosphere) indoor environment to its students. This innovative air system supplies cool, fresh and clean air inside the rooms while reducing overall energy consumption. It is a more sustainable and environmentally friendly energy alternative to standard air conditioners and air purifiers. Panyaden is the first school in Asia to use this innovative Fresh Air System.

How the Panyaden Fresh Air System works

The benefits of the Panyaden Fresh Air System

The are several benefits to using the Panyaden Fresh Air System instead of the standard air conditioners and air purifiers:

  • Cooler air inside the classroom during hot seasons. The indoor temperature remains at a comfortable level of 27-28 degree celsius.
  • Cleaner air inside the classroom, with a much lower rate in CO2 and PM2.5. This means there is more oxygen supply and less polluting particles in the atmosphere, which can boost the performance of the students. 1 2
  • 30% less energy consumption compared to standard air conditioners, thus providing a more environmentally friendly solution. 
  • The Panyaden Fresh Air System will be a Learning Center, the first of its kind in Asia, for Panyaden students and the public to learn how to use environmental science to innovate sustainable engineering systems.  

Panyaden International schools aims to install this innovative system in all classrooms in the whole campus in the next two academic years. We would like to acknowledge the contribution of Chiangmai Life Construction team, Mr. Markus Roselieb, Mr. Markus Giefing , CATEC (Chiangmai Airtech Engineering), Mr Somsak Auttapracha and his team for their tireless efforts in innovating the Panyaden Fresh Air System. We would also like to express our special gratitude and appreciation to Erber Family Foundation (Thailand) for sponsoring this scientific innovation. 


1 Orlando, A. (2020, January 14). Putting Air Filters in Classrooms Could Give Student Performance a Serious Boost. Discover Magazine. https://www.discovermagazine.com/environment/putting-air-filters-in-classrooms-could-give-student-performance-a-serious2 White Paper: Fraunhofer-Institut für Bauphysik IBP. (2015). Impact of the indoor environment on learning in schools in Europe. https://velcdn.azureedge.net/~/media/com/articles/pdf/fraunhoffer%20infographics.pdf 
*The Fresh Air System operates from 8am-4.30pm (local time), Monday-Friday.