HEF-U
Filters for ultra high efficient air cleaning of type HEFU of U-15 and U-16 classes in accordance with Eurostandart EN1822 are used for finishing (final) air cleaning in airconditioning systems of super clean rooms of ISO 4 and ISO 3 classes according to ISO 14644-1.
Filter class |
Nominal specific air flow, m3/h, on m² inlet sectional area (speed through the filter), (m/s) |
Efficiency % for size of particles, mkm |
Pressure drop, Pa |
|
Initial |
Recommended final |
|||
U15 |
1620 (0,45) |
99,9995 |
130-150 |
600 |
U16 |
1620 (0,45) |
99,99995 |
150-170 |
600 |
U17 |
1620 (0,45) |
99,999995 |
170-210 |
600 |
The filter can be used at air temperature not greater than 70°C