When Protan introduced Ventiflex in 1949, we were the first in Europe to provide flexible ventilation ducts for mines and tunnels. Our ventilation ducts became an international success immediately. Since then, we have built an extensive know-how and broad-based experience that form the basis for today's worldleading products and solutions.

Protan Ventiflex Air

Protan Ventiflex Duo

Protan Ventiflex Shaft

Protan Ventiflex Antistatic

Protan Ventiflex Details


The Bosporos Strait