Case Study
Kallo School
Involved: Gyproc
Country: Belgium
Measuring effect of Activ’Air®
As part of a school renovation project in Kallo, Belgium, Gyptone® conducted tests of two almost identical rooms to document the effect of Activ'Air®.
Gyptone® ceilings were installed without Activ'Air® in one room, but with Activ'Air® in the other.

Activ'Air® proved to have a lasting effect: one tile from each room was removed three months after installation for testing in a laboratory.
The results showed that Gyptone® Activ'Air® continued to help reduce the formaldehyde concentration.
