CERTIFICATIONS

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We are backed by European certification standards

The Zonair3d products and all their components have been certified by entities of recognised international standing.

All our production departments have received ISO 9001:2008 and ISO 14001 certification.

The Zonair3d filters have been tested at laboratories with current European EN779:2012 certification and the corresponding US ASHRAE 52.2 certification, thereby certifying absolute filter effectiveness.
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