Diagnosis
Musty or lingering smells mean stale air is not extracted fast enough. Targeted mechanical extraction in kitchen, bathroom and toilet replaces air faster than natural ventilation.
Take the ventilation check
Ventilation against odours
Cooking smells that linger, a musty smell in the bedroom or bathroom point to insufficient air renewal.
Faster air renewal
A mechanical extraction system renews air continuously and specifically. A demand-controlled system C+ adds extra during cooking or showering.
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.
