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Greenwood Vireo G3 Grade filter for HR155CM & HR155WM + Zehnder CA155CM & CA155WM 45% efficient


  • No Quibble Returns
  • Free Delivery for 2 or more sets
  • Easy install video below

Sale price£42.48 inc VAT

HR155FIL Vireo filter. Each set contains 2 x G3 filter 29cm x 14.5cm x 4cm 


G3 Grade filter for Greenwood Vireo HR155CM & HR155WM + Zehnder CA155CM & CA155WM 45% efficient 

G3 filters are designed to capture large pollen spores, fog and coarse dust particles (≥10μm). This includes hair, mould & plant spores, pet dander, textile dust and skin flakes. The quoted efficiency rate for filtering these particles is >45%

 We also stock an alternative filter (Part No: CA155FIL.UPG) which is designed to filter the same particles but at a higher efficiency of > 60%

These can be purchased by clicking this LINK


Please note, when replacing filters on your Greenwood heat recovery unit it is always necessary to also reset the filter change timer on the unit otherwise the service light will not go out.

These units work on a calendar timer basis and simply changing the filters will still present the same issue as the heat recovery unit has to be told by the user when the filters have been changed.


For instructions on how to reset the filter calendar or replace the filters on your unit please download the HR155WM Home Owners guide under the "technical" tab of this page and reefer to page 8 of the manual.

 To see the Vireo youtube please select: Vireo Filter video or press play below

Part No. HR155 / HR155FIL / HR 155 FIL / 155FIL
Guarantee2 Year

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