The DUPLEX filter series offers many advantages, among which we will note:
- 2 in 1 type filtration
- 1 single filter to install and connect
- 1 pressure drop
- Maximum efficiency: 0.01µ and 0.003 ppm

A single flat would obscure the table, the treated flows were limited to 75 m3 / h under 7 bars and confined this series to applications of type "machine protection" or "laboratories".
The range will now include 8 models to cover flow rates between 42 and 300 m3 / h.
These filters, downstream of a 1µ prefilter, provide class 1 efficiency for particles and residual oil (according to ISO 8573-1: 2001).
The new DUPLEX filters open up new perspectives for applications requiring perfectly de-oiled air.