Diagnosis
Mould grows where it stays damp for long. By extracting humid air in a controlled way, humidity drops below the growth threshold. A system C or C+ tackles this at the source.
Take the ventilation check
Ventilation against mould
Black spots in corners, behind cupboards and around windows are mould, which thrives above 70 percent relative humidity. Cleaning helps temporarily.
Prevent mould structurally
Targeted, continuous extraction of humid air keeps humidity low enough that mould gets no chance.
Indoor air
What healthy indoor air means
Ventilation is about invisible air quality. Here is how to recognise healthy values.
CO2ppm
good: below 800attention: above 1200
High CO2 makes rooms stuffy and tiring, often in bedrooms.
Relative humidity%
good: 40 to 60attention: above 70
Too much moisture causes condensation, mould and a musty smell.
