KUALA LUMPUR, August 21 2026 — Staying indoors with doors and windows closed can significantly reduce exposure to haze particles, but experts warn that homes are not completely protected from pollutants such as PM2.5.
Indoor air quality specialists said conventional air-conditioning systems can help filter particles already inside the home, while HEPA air purifiers can provide additional protection during periods of unhealthy air quality.
However, keeping homes completely sealed for long periods can lead to poor ventilation and increased carbon dioxide levels.
Experts advised residents to minimise the opening of windows during haze episodes while ensuring adequate ventilation when outdoor air quality improves.
They also warned that PM2.5 can enter homes through gaps and ventilation systems, and prolonged exposure may affect the respiratory system, particularly among children, older people and those with existing health conditions.
The key advice is to reduce repeated exposure while maintaining reasonable indoor air quality during haze conditions.
-malaymail
