In HVAC technology (heating, ventilation and air conditioning), the air quality is directly dependent on the properties of the materials used. Insulation materials in ventilation ducts are often exposed to moisture and temperature fluctuations. These conditions can favour the growth of microorganisms.
In this article, we show how our SAGLAN glass wool performed in recent tests conducted by the independent testing laboratory EPH Dresden and why our products reliably meet the high hygiene requirements of VDI 6022. This means that they make an important contribution to clean air, safety and quality in your projects.
High requirements for ventilation technology
Ventilation ducts and air conditioning units are sensitive areas where moisture and organic particles can meet. To ensure that air quality is not compromised, the insulating materials used must not provide a breeding ground for mould or bacteria.
For this reason, we at SAGER had the resistance of our SAGLAN insulation mats tested by the accredited development and testing laboratory Entwicklungs- und Prüflabor Holztechnologie GmbH (EPH) in Dresden . SAGLAN glass wool components with two different surface finishes, a black glass fabric and a black glass fleece, were tested.
Test for mould in accordance with DIN EN 17886
Testing of mould resistance was carried out in accordance with DIN EN 17886:2024–03. The samples were exposed to extreme humidity of 95 percent at a temperature of 28 degrees Celsius for four weeks. In order to simulate realistic and challenging conditions, the samples were infected with six different fungal strains, including Aspergillus niger and Trichoderma viride.
The results confirm the high quality of our insulation solutions:
- The black glass fleece (component 3) achieved the highest possible classification MS1 and is therefore not susceptible to mould growth. No relevant increase in the number of live germs was detected, either visually or quantitatively.
- Glass wool and glass fabric have been classified as MS2 and are therefore considered to be only slightly susceptible. Even after four weeks under extreme conditions, no visible mould growth was discernible.
- The overall rating is therefore MS2, which confirms that the product is very well suited for use in HVAC systems.
Bacterial resistance in accordance with DIN EN ISO 846
In addition to mould, resistance to bacteria is crucial. In accordance with the standard DIN EN ISO 846:2020, tests were carried out to determine whether the bacterium Pseudomonas aeruginosa can grow on the insulation materials. Pseudomonas aeruginosa can grow on the insulation materials.
The result is clear. No bacterial growth was detected on the test specimens. The components of SAGLAN glass wool do not provide a nutrient base for bacteria and are considered resistant to bacteria in accordance with method C of the standard.
Greater security for planners and installers
Independent tests confirm that SAGLAN glass wool meets the strict hygiene requirements of VDI 6022. At the same time, our products set standards for clean and healthy indoor air.
Our products thus combine outstanding thermal and acoustic insulation properties with an active contribution to hygiene in ventilation ducts and air conditioning systems.
Thanks to their high resistance to microbiological infestation, SAGLAN insulation materials contribute to the long-term value retention of your ventilation ducts and air conditioning systems and minimise health risks for room users. In addition, our products meet the requirements of DIN EN 15780 for the reduction of microorganisms, including mould, and thus support hygienically perfect, efficient and future-proof system operation.
Conclusion
SAGLAN glass wool with fabric or fleece lamination offers proven protection against mould and bacteria. The classification in accordance with DIN EN 17886 and the confirmed resistance in accordance with DIN EN ISO 846 make our products the ideal solution for hygienically demanding HVAC applications in accordance with VDI 6022 and DIN EN 15780.
Would you like to find out more about our certified solutions? Then contact us now for a non-binding specialist consultation.