EN779 is a standardised system for classifying the efficiency of air filters used in ventilation and air conditioning systems. It was developed by the European Committee for Standardisation (CEN) to provide a common framework for assessing the performance of air filters. The standard assigns filters to different classes based on their ability to capture and retain airborne particles of various sizes.
What does EN779 Mean For MVHR Systems?
MVHR systems are designed to continuously exchange indoor and outdoor air while recovering heat from the outgoing air stream. In this context, EN779 serves as a guideline for selecting the appropriate filters that find a balance between efficient heat recovery and effective air filtration. Filters compliant with it ensure that the incoming fresh air is adequately cleaned, removing particles and pollutants. By adhering to the standard, designers and users of MVHR systems can optimise performance, reduce maintenance costs, and ensure that the equipment continues to deliver fresh, clean, and energy-efficient indoor air. EN779 certified filters provide assurance to users that the filters they’re purchasing will perform as expected. It’s worth noting that all MVHR.shop compatible replacement filters comply with this standard.
How does EN779 Compare to ISO 16890?
EN779 and ISO 16890 are two prominent standards used for evaluating the performance of air filters. While EN779 is a European standard, ISO 16890 is an international standard recognised worldwide. One key distinction is their approach to particle size classification. The European standard uses an older, less precise method and assigns filters to efficiency classes based on their ability to capture particles. Whereas ISO 16890 employs a more modern and comprehensive method that measures filter efficiency at multiple particle sizes. This provides a more detailed assessment of a filter’s performance. It also introduces the concept of “ePM” efficiency classes, which align with the particle size fractions defined by ISO 16890. Additionally, ISO 16890 tests filters with synthetic dust that better reflects real-world conditions, whereas EN779 primarily uses natural atmospheric dust. Therefore, while EN779 is widely used in Europe, ISO 16890 offers a globally recognised and precise approach to filter classification.
In Summary…
In conclusion, the European standard EN779 is important for ensuring the efficiency and reliability of air filters within ventilation systems. It holds significance not only in enhancing indoor air quality but also in optimising the performance of MVHR systems. By adhering to EN779, users can be confident that the filters they select will perform as expected. Whether it’s EN779 or ISO 16890, the goal remains the same: ensuring the air we breathe indoors is clean, healthy. All MVHR.shop compatible replacement filters comply with both EN778 and ISO 16890.
