RE: RE: Air quality got better in Vienna again :) What is the PM2.5 level at your place?
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RE: Air quality got better in Vienna again :) What is the PM2.5 level at your place?

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Meinst du Heizungen (und vor allem Art zu heizen) haben keinen Einfluss auf die Luftqualität?

@vikisecrets: Meinst du Heizungen | Ecency