Switzerland, Liestal
... excellent filter performance and lifespan. Additionally, we have had our products tested by an independent testing institute, the Technical Research Institute of Sweden (SP). SP Technical Research Institute of Sweden is authorized to conduct tests according to EN779:2012 and classify the filters into energy efficiency classes (A, B, C, D, and E) according to Eurovent. We have marked our products with special energy-saving potential.
Switzerland, Rotkreuz
Switzerland, Bad Zurzach
HeiQ is a Swiss specialty chemicals company that develops and manufactures high-performance textile effects. The company was founded in 2005 as a spin-off of the Swiss Federal Institute of Technology.

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