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- Available certificates:
» Air tightness Class DThe Air Spiralo® production facilities have been examined by VTT Expert Services Ltd. and the circular ducts and fittings have passed all tests according the certification criteria ‘VTT SERT R022-04;ductwork for ventilation systems’. The Air Spiralo® circular ducts and fittings equipped with KEN-LOK® meet the certification criteria of air-tightness class D both with under-and overpressure. Inspection and certification services have been accredited by the national body FINAS (Finnish Accreditation Service).
»TÜV Rheinland Netherlands - Luka certificate productlabelCertified in production, mounting and air tightness in accordance with the Luka-norms.
» TÜV Rheinland Poland CertificateTÜV Rheinland Polska Sp. z o.o. declares that ventilation elements manufactured by Air Spiralo® meet the requirements due to the research based on the standards: PN-EN 1506:2007 and PN-EN 12237.2005.
» M1 Cleanliness classification of Circular and Rectangular silencersThe classification working group set up by the Building Information Foundation RTS has approved the following Air Spiralo® products: CSRP Circular silencer-mineral wool, CSDP Circular silencer-polyester, RSR Rectangular silencer-mineral wool and RSD Rectangular silencer-polyester