HVAC Optimization for Mould Prevention in Tropical Climates: A Singapore Study
12-month study identifies optimal air conditioning settings and maintenance protocols for mould prevention in Singapore homes.
Pico X Health Research•April 2024•14 min read
Abstract
This 12-month study evaluated HVAC settings and maintenance protocols across 120 Singapore residential units to identify optimal configurations for mould prevention. Temperature differentials exceeding 8°C between indoor and outdoor increased mould risk by 340% due to condensation formation. Optimal settings identified: 24-26°C with regular 3-month filter changes and coil cleaning.
Key Findings
Temperature Settings
Temperature Setting
Mould Risk
Energy Cost
Below 22°C
High (340% increase)
Very High
22-24°C
Moderate (120% increase)
High
24-26°C (Optimal)
Low (baseline)
Moderate
Above 26°C
Low
Low
Condensation Risk Factors
Temperature differential >8°C from outdoor: 340% higher mould risk
AC running continuously 24 hours: 180% higher risk vs. 8-12 hour operation
Poor duct insulation: 420% higher condensation on surfaces