The 
  Silvermist has a rotating drum with blades. These create a suction, and 
  remove the aerosols on the spot where they are formed. 
The very fine droplets collide against the blades, form bigger drops and are centrifuged off. The collected oil can be re-used.
The Silvermist is selfcleaning and 
  does not have any plates or cartridges which have to be changed. 
  
  The efficient concept guarantees a removal rate of more than 97 %; when using 
  an after-filter this can be increased till > 99.6 %.