Pack of 10 Replacement G3 Filters for LWZ 170 Plus / LWZ 270 Plus

$72.00 inc. GST

10x G3 Air Filters for STIEBEL ELTRON LWZ 170 Plus and LWZ 270 Plus

Replacement filter mats for the extract air in the 170 Plus/270 Plus central ventilation units.

Air filter grade scale G3

Air Filter Compatibility

These filters are compatible with the following ventilation units:

LWZ 170 Plus (221235)
LWZ 270 Plus (221237)

STIEBEL ELTRON Ventilation LWZ 170 Plus 270 Plus

Air Filter Classifications – What each type of filter removes from the air

The below table outlines the different performance and properties of each air filter class.
The current class if air filter is highlighted in red.

Filter Group Air Filtration Level Particle Size What is filtered out?
Air filters for coarse dust particles G3
≥ 10 µm
  • Pollen
  • Flower pollen
  • Fog
Air filters for medium-sized dust particles M5 ≥ 1 µm
  • Spores
  • Cement dust
  • Dust particles
  • [All the above]
Air filters for fine dust particles F7 ≥ 1 µm
  • Bacteria
  • Carbon soot
  • Fine dust
  • [All the above]
Air filters for fine dust particles F9 ≥ 1 µm
  • Tobacco smoke (roase fractions)
  • Metal oxide smoke (soarse fractions)
  • Oil smoke
  • [All the above]

How often should I replace the air filter in my ventilation unit?

Air filters in ventilation units should be replaced with a frequency of at least twice a year – or as required.

Visually inspecting the filtration medium (pads/filters) in your ventilation appliance is an easy process. Periodically check your air filters. Upon inspection, if filters are visually discolored they should be replaced.

Clogged or old filters which are overdue for replacement can affect the performance and air flow rate of your ventilation device. Maintaining fresh filters will ensure the highest level of air filtration for the health and well being of occupants.

Ventilation units from STIEBEL ELTRON will indicate when it’s time to change you filters with an icon in the controller display.

Still have questions?

If you have any questions or are unsure of which is the correct filter for your ventilation unit, feel free to contact us and our friendly staff will be willing to assist.

Article Number



LWZ 170 Plus (221235), LWZ 270 Plus (221237)

EAN Code


Grade (EN779)


Grade (ISO 16890)

ISO Coarse > 45%

Package Quantity


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