TECHNOLOGY FOCUS · IAQ
You can have a warm building and still have bad air.
Indoor air quality sits at the intersection of ventilation, moisture, temperature, filtration, occupancy and energy. Treating those issues separately can miss the real problem.
NEW ZEALAND HAS A REAL PROBLEM
Ventilation and heating have to work together.
BRANZ's latest HEEP2 research, published in August 2026, found visible mould in 48% of owner-occupied New Zealand homes. The study also reported dampness in 32% of homes and winter condensation in 75%.
Those numbers reinforce something EvolutionFX has been interested in for years: indoor air quality is not simply an extraction-fan problem. Moisture, temperature, ventilation and building performance interact.
THE REFRAME
Don't just move air. Manage the indoor environment.
Good ventilation removes pollutants and excess moisture, but it also interacts with heating, insulation, building use and energy consumption. BRANZ and WHO both point to the importance of managing ventilation and moisture together.
THE ENERGY QUESTION
What if better air did not have to mean wasting more energy?
That is where ventilation becomes an engineering problem worth reframing. Instead of simply increasing airflow, we can ask what the building needs right now, what can be measured, where the air should move, and what energy penalty comes with the decision.
That thinking connects naturally with heat recovery, demand control, filtration, humidity management, heating and intelligent control.
DESIGN AROUND THE DATA
EVOLUTIONFX · IAQ
Air quality should be measured, not guessed.
Ventilation advice is often based on rules of thumb. Sensors and controls create the possibility of a more responsive system — one that reacts to the people, moisture and pollutants actually present.
For us, the interesting product-development question is what happens when IAQ data becomes part of the wider energy and building-control system.
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