ASHRAE Standard 52.2-1999 ASHRAE 52.1 EN EN779:2012 EN 1822 Minimum Eff Reporting Value Composite Average Particle Size Efficiency % in Size Range, μm Average Arrestance Average Dust Spot Efficiency Filter… Read more
EN ISO 14644-1
ISO 14644-1 defines the classification of air cleanliness in cleanrooms and associated controlled environments exclusively in terms of concentration of airborne particles. Only particle populations having cumulative distributions based on… Read more
EN 779:2002 CLASSIFICATION SYSTEM
The EN 779:2002 classification system (comprising groups F and G filters) has been changed to three groups (F-,M- and G-filters). Filters found to have an average efficiency value of less… Read more
HEPA Filters
HEPA filters used in clean rooms and related test standards. Prof. Dr. F. Taner Özkaynak ABSTRACT Usage of HEPA filters in cleanrooms is increasing rapidly, especially in the applications concerning… Read more
EN1822 and ISO29463: HEPA Filter Tests and Standards
EN 1822, a European standard, provides a detailed classification system for HEPA and ULPA filters based on their filtration efficiency and ability to capture particles of various sizes. It outlines… Read more
Eurovent Certification: A Guarantee of Performance
At Ulpatek, we take quality and performance seriously. Our air filters are Eurovent certified, which means that they have been strictly tested to meet the highest performance standards in the… Read more
ISO 16890 Standard for Air Filters Used in General Ventilation
ISO 16890 standard is used as a standard for air filter instead of EN 779 and ASHRAE 52.2. Measuring the efficiency of an air filter at a particle size range… Read more
Understanding Most Penetrating Particle Size (MPPS)
Most Penetrating Particle Size (MPPS) refers to the particle size that is most difficult to capture. The MPPS is important to consider when choosing an air filter, as it is… Read more
