Wolf 300/400 without bypass - G4
Wolf 300/400 without bypass - G4 Filter
This wtw filter set is manufactured in-house by hq-filters.co.uk with the filter standard ISO 16890, which is equal to the original filters.
With our own production, we can offer high quality product alternatives at attractive prices.
This set consists: of 2 filters
Filter class: G4- Coarse 60% ISO 16890. Dimensions 415x237mm.
Model: wire frame:
Filter class G4 - Coarse 60% ISO 16890
Dimensions 415 x 237 x 5 mm.
Brand: hq filters
Wolf no.: 1668493
Old art. no.: W8493
By purchasing these wtw filters, you will bring fresh air from outside into your home. Good ventilation is important to maintain the indoor climate of the home properly, but also to ensure that dust, dirt, bacteria and mould cannot accumulate in the ventilation system.
Regular filter changes mean significant energy savings.m
The filter standard : EN799:2012 has been replaced since 1 July 2018 by the filter standard : ISO16890
This classifies filters into so-called ePM categories.
This classification gives an accurate indication of which particle sizes are filtered out of the air.
PM1 stands for all types of particulate matter smaller than 1 micron (μ = one thousandth of a millimetre):
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PM1: 1μ = 0.001 mm
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PM2.5: 2.5μ = 0.0025 mm
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PM10: 10μ = 0.01 mm
The 'e' for PM1 stands for 'efficiency' and indicates the efficiency of the air filter in capturing PM1.
Using these values, the standard now splits filters into four groups that filter different dust particles:
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ISO Coarse < 50% (sand, lint, hair)
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ISO ePM10 ≥ 50% (pollen, stone dust)
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ISO ePM2.5 ≥ 50% (mould spores, toner dust)
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ISO ePM1 (combustion particles, nanoparticles, viruses)
For questions, suggestions or special filter requests, call 0513-648364 or email [email protected]
