They are designed primarily for school classrooms. They feature low noise levels (32 dB), provide a healthy environment, have a very high heat recovery efficiency (up to 93%) and also save money. They reduce the fatigue of students and teachers and provide excellent ventilation throughout the classroom. Extremely easy to install without the need for an air duct system.
For more information https://www.atrea.bg/bg/duplex-inter
Under the Auspices of:
Ministry of Regional Development and Public Works
Long-term Supporting Partner
In Partnership with:
Organization of the Black Sea Economic Cooperation (BSEC)
Official Media Partner :