Quote:
Originally Posted by nwpmikey
need a new pollen filter on mine, think in past the plenum has been full as the filter is black and mouldy all off it.
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Possibly, but they do get dirty anyway, probably from damp air and dust entering the plenum chamber. It is worth changing them as per schedule anyway; you don't want to end up with Legionnaires' disease, or worse.
Roverite.