EN 1822

EN 1822 is a European standard that sets guidelines for testing and rating the efficiency of high-performance air filters used in ventilation and air purification systems. It specifies different classes, like E10 to U17, based on how effectively a filter can trap airborne particles, especially fine and ultrafine particles. These classifications help ensure filters meet specific performance levels for air cleanliness in environments such as hospitals, laboratories, and cleanrooms. Essentially, EN 1822 provides a standardized way to compare and select filters, ensuring they provide the desired level of air filtration for safety and health.