Different grades of filter provide different levels of filtration based on the size of particles that they remove from the airstream:


  • ISO 45% (G3) Course will provide the minimum required filtration

  • ISO ePM10 50% (M5) will remove smaller particles, including pollen

  • ISO ePM2.5 70% (F7) provides high level of filtration, removing tiny PM2.5 particles often found in exhaust fumes


Higher grade filters are only required on the intake side of the system

If you can't find the filter(s) you're looking for please click here to go to our contact page and fill out an enquiry form.


PO Box: 1334, Peterborough, PE1 9UL

Telephone: 08445 424 652


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