Certificates
Biofilter
TÜV-Rheinland
Suitability assessment procedure
Officially tested by the Ministry of the Environment NRW
Proof of suitability biofilter
Cluster Umwelttechnologien.NRW
Biofilter
TÜV-Rheinland
Suitability assessment procedure
Officially tested by the Ministry of the Environment NRW
Proof of suitability biofilter
Cluster Umwelttechnologien.NRW