What is EN ISO 779:2018?

EN ISO 779:2018 is a professional technical standard that provides guidelines for determining the filtration efficiency of air filters in buildings and ventilation systems. It is an important standard that helps ensure the quality of indoor air and the safety and comfort of building occupants. Proper air filtration is crucial in preventing the spread of airborne contaminants, such as dust, pollen, bacteria, and viruses.

The importance of air filtration

Air filtration plays a critical role in maintaining a healthy indoor environment. With buildings becoming more energy-efficient, there is a greater need to rely on ventilation systems to keep indoor air fresh and clean. However, without effective air filtration, these ventilation systems can become conduits for the distribution of pollutants and allergens throughout a building. This can lead to poor indoor air quality, which has been linked to various health issues, including respiratory problems, allergies, and asthma.

The testing process

EN ISO 779:2018 outlines the method for evaluating the performance of air filters based on their ability to remove particles from the air. The test involves measuring the filter's efficiency in trapping and retaining particles of different sizes across a range of airflow rates. The results are then used to classify filters into different efficiency categories, ranging from G1 (lowest) to F9 (highest).

The benefits of compliance

Complying with EN ISO 779:2018 offers several benefits. Firstly, it ensures that air filters meet minimum standards for efficiency and performance. This helps building owners and facility managers select the right filters for their specific needs and requirements. Secondly, proper air filtration improves the overall indoor air quality, creating a healthier and more comfortable environment for occupants. Additionally, adhering to this standard can also contribute to energy savings by optimizing the performance of ventilation systems and reducing the load on HVAC equipment.