Singapore’s Ministry of Manpower (MOM) has advised employers to proactively adjust outdoor work activities based on real-time PM2.5 readings. The Ministry stated that as hourly PM2.5 levels increase, companies should progressively reduce outdoor work. This guidance aims to safeguard the health of workers exposed to potentially hazardous air quality. MOM did not specify trigger levels but emphasized a responsive approach to changing conditions. These recommendations are particularly relevant given ongoing regional haze and fluctuations in air quality impacting Singapore. Employers are encouraged to monitor the National Environment Agency (NEA) website for up-to-date PM2.5 information and implement appropriate measures. The directive underscores a commitment to worker well-being amidst environmental challenges in Singapore.