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 y 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.
ES 1882: Es una improvisación de Eurovent 4/4 de 1998. Esta norma se modificó solo una vez en 2010. Cubre filtros de alta eficiencia (E10 y superiores).
FILTROS DE AIRE y CLASIFICACIÓN DE EFICIENCIA
| CLASIFICACIÓN | Eficiencia de detención o de manchas de polvo | ASHRAE de EE. UU. 52,2 | Clase EN779 de la Unión Europea | Contaminante controlado típico | Solicitud | |
|---|---|---|---|---|---|---|
| Filtro previo (Clase G) | AFI | MERV 1 | G1 | Soy | Partícula mayor que 10,0 µm (Polen) (musgo español) (ácaros del polvo) (Polvo de lijado) (Polvo de pintura en aerosol) (Fibras textiles) | Filtro bruto, doméstico y comercial |
| IFA 65%-70% | MERV 2 | G2 | 65%≦Soy | |||
| IFA 70%-75% | MERV 3 | |||||
| IFA 75%-80% | MERV 4 | |||||
| IFA 80%-85% | MERV 5 | G3 | 80%≦Soy | Tamaño de partícula entre 3,0 µm y 10,0 µm (Moho) (Esporas） (Laca para el cabello) (Polvo de cemento） (Rapé) (Leche en polvo) | Comercial, industrial, taller de pintura |
|
| IFA 85%-90% | MERV 6 | |||||
| SNB 25%-30% | MERV 7 | G4 | 90%≦Soy | |||
| SNB 30%-35% | MERV 8 | |||||
| Filtro MEDIO (Clase F) | SBN 40%-45% | MERV 9 | F5 | 40%≦Em | Tamaño de partícula entre 1,0 µm y 3,0 µm (Polvo de plomo) (Harina molida） (Polvo de carbón) (Emisiones automáticas） (Caída del nebulizador) (Humos de soldadura) | IAQ preocupada comercial & industriales, médicos |
| SNB 50%-55% | MERV 10 | |||||
| SNB 60%-65% | MERV 11 | F6 | 60%≦Em | |||
| SNB 70%-75% | MERV 12 | |||||
| SBN 80%-85% | MERV 13 | F7 | 80%≦Em | Tamaño de partícula entre 0,3 µm y 1,0 µm (Todas las bacterias） (aceite de cocina) (La mayoría fuma) (Tóner de fotocopiadora） (La mayoría de los polvos faciales) (La mayoría de los pigmentos de pintura) | IAQ preocupada comerciales, industriales, médico, alimentación, etc. |
|
| SNB 90%-95% | MERV 14 | F8 | 90%≦Em | |||
| NBS>95% | MERV 15 | F9 | 95%≦Em | |||
| MERV 16 | ||||||
| Filtro HEPA (Clase H) | ≧95% a 0,3 µm | H10 | ≧85% en MPPS | Tamaño de partícula superior a 0,3 µm (Virus [no adjunto]） (Polvo de carbono） (Sal marina) (Todo el humo de combustión） (progenie del radón) | Todo tipo de salas blancas | |
| ≧98% a 0,3 µm | H11 | ≧95% en MPPS | ||||
| ≧99,97% a 0,3 µm | ESCRIBE UN | |||||
| ≧99,99% a 0,3 µm | TIPO C | H12 | ≧99,5% en MPPS | |||
| ≧99,995% a 0,3 µm | H13 | ≧99,95% en MPPS | ||||
| ≧99,999% a 0,3 µm | TIPO D | H14 | ≧99,995% en MPPS | |||
| Filtro ULPA (Clase U) | ≧99,9995 % a 0,12 µm | TIPO F | H15 | ≧99,9995% en MPPS | Tamaño de partícula mayor que 0,12 µm | súper sala limpia |
| ≧99,99995 % a 0,12 µm | H16 | ≧99,99995% en MPPS | ||||
| ≧99,999995 % a 0,12 µm | H17 | ≧99,999995% en MPPS | ||||
1. AFI: Instituto Americano de Filtros
2. NBS: Oficina Nacional de Normas
3. ASHRAE: Sociedad Estadounidense de Ingenieros de Calefacción, Refrigeración y Aire Acondicionado
4. MERV: Valor mínimo de informe de eficiencia
5. MPPS: tamaño de partícula más penetrante
6. HEPA: filtro de aire de partículas de alta eficiencia
7. ULPA: filtro de aire de penetración ultrabaja
8. Am: Eficiencia promedio de detención para filtros gruesos
9. Em: Eficiencia promedio para filtros finos
10. IEST: Instituto de Ciencias y Tecnología Ambientales
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.
