Employers planning outdoor or strenuous work should also refer to the one-hour PM2.5 concentration and its accompanying personal guide for an indication of current air quality. Employers in Singapore have been reminded to take the necessary measures to protect their workers amid an ongoing risk of haze. Should the PSI reach the Unhealthy range (>100), employers are to implement the following measures shared by the HTF where necessary:Reduce prolonged or strenuous outdoor work for healthy employees. Minimise such work for elderly or pregnant employees and avoid assigning prolonged or strenuous outdoor duties to workers with chronic heart or lung disease. READ MORE: 55% of full-time resident employees surveyed worked for employers with after-hours communication policies in 2025: MOMLead image / MOM Facebook