EN ISO 16890:2016 Standard
Industrial Filter SpecificationsEN ISO 16890:2016 Standard. Air Filters used in General Ventilation.
Classification according to efficiency based on particulate matter (PM)
| Group name | Requirements | Class declaration value | ||
| ePM1,min | ePM2,5,min | ePM10 | ||
| ISO Coarse | – | – | <50% | Initial gravimetric retention |
| ISO ePM10 | – | – | ≥50% | ePM10 |
| ISO ePM2,5 | – | ≥50% | – | ePM2,5 |
| ISO ePM1 | ≥50% | – | – | ePM1 |
Filter classes are declared as class declaration values together with the group name. To declare the ePM classes, the class declaration values are rounded down to the nearest multiple of 5% of the points. Values above 95% are declared as “> 95%”.
