EN1822

EN1822 is a European standard that specifies requirements for high-efficiency particulate air (HEPA) filters used in air cleaning systems. The standard is divided into several parts, with EN1822-1 defining the test methods for filter classification and performance. It establishes a system of efficiency classes, from E10 to H14, with H14 representing the highest level of filtration. EN1822-1 outlines the procedures for measuring the particle penetration and efficiency of HEPA filters using a specific test aerosol. The standard also includes requirements for filter construction, marking, and packaging to ensure consistent performance and reliable use. EN1822 is widely adopted in industries where high levels of air purity are critical, such as healthcare, pharmaceuticals, and cleanroom manufacturing. Adherence to EN1822 ensures that filters meet rigorous performance criteria, contributing to improved indoor air quality and the protection of sensitive environments and processes.