Mechanical

Ventilation & indoor air quality

• 🇳🇿Indoor Air Quality — BRANZ Research NowBRANZ / Indoor Air Quality NZ · June 2019A BRANZ Research Now bulletin on how ventilation affects indoor air quality in New Zealand houses — why homes are often under-ventilated and the steps designers and occupants can take to control moisture and contaminants for healthier air.
• 🇳🇿Indoor Air Quality and Thermal Comfort (Ministry of Education)Ministry of Education · February 2022Ministry of Education design guidance on indoor air quality and thermal comfort in schools — mandatory requirements and recommendations on ventilation, heating and moisture control for architects and engineers designing learning spaces.
• 🇳🇿Options to Improve Ventilation — Briefing (Ministry of Health)Ministry of Health · March 2024A Ministry of Health briefing to the Minister on options to improve building ventilation, prepared in the context of the COVID-19 response — reviewing measures to reduce airborne-infection risk and the wider health benefits of better ventilation.
• 🇳🇿Passive Ventilation (BRANZ Bulletin 607)BRANZ · February 2017A BRANZ bulletin on designing passive (natural) ventilation for New Zealand houses — how wind-driven and stack ventilation remove moisture and pollutants, and the design considerations for optimising natural airflow.
• 🇳🇿Residential Mechanical Ventilation Systems (BRANZ Bulletin 581)BRANZ · February 2015A BRANZ bulletin on residential mechanical ventilation systems — supply, extract and heat-recovery systems — covering how they work, the role of airtightness and infiltration, and their part in managing indoor air quality and moisture.