ASHRAE 52.2: Filter testing was originated from America in 1930 (ASHVE and AFI code). It was then reviewed and modified in 1967 and 1968. ASRHAE collaborated with American National Standard Institude (ANSI) in 1992 to create ASHRAE-ANSI 52.1. Finally updated to ASHRAE 52.2 in 2007.
EUROVENT 4/4 et 4/5: Eurovent 4/5 was established in 1974 by modifying existing ASHRAE 52-68 to suit the applications in Europe. Eurovent 4/5 is catered for primary and secondary filter while Eurovent 4/4 is catered for high efficiency filters
EN 779: It was the first European’s Air filter test method in 1993, built on the foundations of Eurovent 4/5. This standard was modified later in 2002 and 2012. Only covers primary and secondary filters.
EN 1882: C'est l'improvisation d'Eurovent 4/4 en 1998. Cette norme n'a été modifiée qu'une seule fois en 2010. Elle couvre les filtres à haute efficacité (E10 et plus).
FILTRES À AIR et CLASSIFICATION D'EFFICACITÉ
| CLASSIFICATION | Arrêt ou efficacité des taches de poussière | ASHRAE 52,2 aux États-Unis | Classe EN779 de l'Union européenne | Contaminant contrôlé typique | Application | |
|---|---|---|---|---|---|---|
| Filtre PRE (Classe G) | IFA | MERV 1 | G1 | Un m | Particule supérieure à 10,0 µm (Pollen) （Mousse espagnole） (Acariens) (Poussière de ponçage) (Poussière de peinture en aérosol) （Fibres textiles） | Filtre brut, domestique et commerciale |
| AFI 65 %-70 % | MERV 2 | G2 | 65%≦Am | |||
| AFI 70 %-75 % | MERV 3 | |||||
| AFI 75 %-80 % | MERV 4 | |||||
| AFI 80 %-85 % | MERV 5 | G3 | 80%≦Am | Taille des particules entre 3,0 µm et 10,0 µm (Mouler) (Spore） (Laque pour les cheveux) (Poussière de ciment) (Tabac à priser) (Lait en poudre) | Commercial, industriel, atelier de peinture |
|
| AFI 85 %-90 % | MERV 6 | |||||
| BNS 25%-30% | MERV 7 | G4 | 90%≦Am | |||
| NBS 30%-35% | MERV 8 | |||||
| Filtre MOYEN (Classe F) | NBS 40%-45% | MERV 9 | F5 | 40%≦Em | Taille des particules entre 1,0 µm et 3,0 µm (Poussière de plomb) (Farine moulue) (Poussière de charbon) (Émissions automobiles) (Goutte du nébuliseur) (Émanations de soudure) | QAI concernée commercial & industriel, médical |
| BNS 50 %-55 % | MERV 10 | |||||
| NBS 60 %-65 % | MERV 11 | F6 | 60%≦Em | |||
| BNS 70 %-75 % | MERV 12 | |||||
| NBS 80 %-85 % | MERV 13 | F7 | 80%≦Em | Taille des particules entre 0,3 µm et 1,0 µm (Toutes les bactéries) (huile de cuisson) (La plupart fument) (Toner du copieur) (La plupart des poudres pour le visage) (La plupart des pigments de peinture) | QAI concernée commercial, industriel, médical, alimentaire, etc. |
|
| NBS 90%-95% | MERV 14 | F8 | 90%≦Em | |||
| NBS>95 % | MERV 15 | F9 | 95%≦Em | |||
| MERV 16 | ||||||
| Filtre HEPA (Classe H) | ≧95% à 0,3µm | H10 | ≧85% au MPPS | Taille des particules supérieure à 0,3 µm (Virus [non attaché]) (Poussière de carbone) (Sel de mer) (Toute la fumée de combustion) (Progéniture du Radon) | Tous types de salles blanches | |
| ≧98% à 0,3µm | H11 | ≧95% chez MPPS | ||||
| ≧99,97% à 0,3µm | TYPE A | |||||
| ≧99,99 % à 0,3µm | TYPE C | H12 | ≧99,5 % au MPPS | |||
| ≧99,995 % à 0,3µm | H13 | ≧99,95 % au MPPS | ||||
| ≧99,999 % à 0,3µm | TYPE D | H14 | ≧99,995 % à MPPS | |||
| Filtre ULPA (Classe U) | ≧99,9995 % à 0,12µm | TYPE F | H15 | ≧99,9995 % à MPPS | Taille des particules supérieure à 0,12 µm | super salle blanche |
| ≧99,99995 % à 0,12µm | H16 | ≧99,99995 % à MPPS | ||||
| ≧99,999995 % à 0,12µm | H17 | ≧99,999995 % à MPPS | ||||
1. AFI : Institut américain des filtres
2. NBS : Bureau National des Normes
3. ASHRAE : Société américaine des ingénieurs en chauffage, réfrigération et climatisation
4. MERV : Valeur minimale de rapport d'efficacité
5. MPPS : granulométrie la plus pénétrante
6. HEPA : Filtre à air à particules haute efficacité
7. ULPA : Filtre à air à très faible pénétration
8. Am : Efficacité d'arrêt moyenne pour les filtres grossiers
9. Em : Efficacité moyenne des filtres fins
10. IEST : Institut des Sciences et Technologies de l'Environnement
FREQUENTLY ASKED QUESTIONS
Eurovent 4.5 and Eurovent 4.4 are two distinct standards developed by Eurovent, a European association of air conditioning and refrigeration manufacturers. Eurovent 4.5 is designed for primary and secondary filters, while Eurovent 4.4 is specifically tailored for high-efficiency filters. The main difference lies in the filter efficiency classification, with Eurovent 4.5 focusing on lower to medium efficiency filters and Eurovent 4.4 catering to higher efficiency filters. This distinction enables manufacturers to design and test filters according to specific application requirements.
EN 779 and EN 1882 are two European standards for air filter testing, with distinct focuses. EN 779, introduced in 1993, is primarily designed for primary and secondary filters, while EN 1882, introduced in 1998, is focused on high-efficiency filters (E10 and above). The key difference lies in the filter efficiency classification and the testing procedures employed. EN 779 is more geared towards general ventilation applications, whereas EN 1882 is suited for critical applications requiring high-efficiency filtration.
The revisions to EN 779 (2002, 2012) and EN 1882 (2010) have introduced significant changes to air filter testing and classification. These updates have refined the testing procedures, expanded the scope of filter types, and improved the accuracy of filter efficiency classification. The revisions have also ensured that air filters meet increasingly stringent requirements for indoor air quality, energy efficiency, and environmental sustainability. As a result, manufacturers must adapt their filter designs and testing protocols to comply with the revised standards.
The ASHRAE 52.2, Eurovent, and EN standards have far-reaching implications for the global air filter market. These standards influence filter design, testing, and classification, ultimately affecting the performance, safety, and energy efficiency of air filtration systems. Manufacturers must comply with these standards to ensure their products meet regional and international requirements. This compliance drives innovation, improves product quality, and enhances customer confidence in air filter products. Furthermore, the standards facilitate trade and commerce by providing a common language and framework for air filter specifications and performance.
