The Ministry of Manpower re-circulated its haze workplace advisory on Wednesday morning as the National Environment Agency forecast the 24-hour Pollutant Standards Index in the unhealthy to very unhealthy range, prompting several employers from Tuas to Changi Business Park to open on-site air-conditioned rest rooms for staff who cannot avoid outdoor tasks entirely.

What MOM is telling employers

The ministry’s standing guidance ties protective measures to the 24-hour PSI band and to shorter one-hour PM2.5 readings when work is outdoors. When air quality sits in the unhealthy range, employers are expected to minimise outdoor work, provide suitable rest breaks in enclosed spaces, and consider redeploying vulnerable workers to indoor duties. MOM has not issued a stop-work order for Wednesday, but its advisory reminds firms that they remain responsible for risk assessments even when the government is distributing N95 masks through community channels.

Trade associations representing logistics and construction firms told InfoHandle that site safety officers began logging hourly PM2.5 prints from the myENV app from dawn, mirroring what schools already do under Ministry of Education protocols. Unlike schools, which will only close if the next-day PSI forecast crosses 300, workplaces rely on a patchwork of company policies layered on top of MOM’s framework.

On-site haze rooms return

At a semiconductor packaging plant in Tuas, management converted a training room into a haze shelter with two portable air purifiers and bottled water, according to a memo seen by InfoHandle. A separate logistics operator at Changi Airfreight Centre said drivers waiting for cargo manifests may use an air-conditioned crew lounge that was reopened for the week. These are not government-run shelters — NEA and the People’s Association opened more than 300 community-club rooms on Tuesday — but they reduce the time workers spend in loading bays where the hourly PM2.5 reading in the west touched 288 on Wednesday afternoon.

NEA’s 14 October situation update said dense smoke from Kalimantan continued to drift toward Singapore on southeasterly winds, with dry weather persisting over parts of southern Sumatra. The agency warned that showers on Thursday might not fully clear particulates if fires keep burning.

How this differs from school rules

Education Minister Desmond Lee has said MOE will consider closing schools only when the next-day PSI forecast enters the hazardous band above 300, with any decision announced around 8 p.m. the previous evening. Parents receive updates through schools and Parents Gateway. Workplace rules do not follow that single threshold; MOM instead expects employers to escalate breaks, protective equipment and task rotation as readings worsen.

Some union-linked groups argue that asymmetry leaves delivery riders, port staff and grounds maintenance crews exposed while classrooms move recess indoors. MOM’s response, in past haze episodes, has been to inspect high-risk sites and issue advisories rather than mandate a nationwide work-from-home order.

What happens next

The Haze Task Force, comprising NEA and 28 agencies, said it is prepared for PSI to remain in the very unhealthy band. Mask collection for vulnerable residents is running through community clubs and vending machines tracked on the HazeMaskGoWhere portal. Employers InfoHandle contacted plan to keep haze rooms open through the week unless NEA forecasts a sustained improvement below the unhealthy range.

For workers, the practical question is whether their supervisor will pay for an N95 with a proper fit or simply suggest longer breaks. MOM’s refreshed circular does not subsidise masks, but it does remind firms that failing to adjust work when air quality deteriorates can attract enforcement under the Workplace Safety and Health Act if an inspector finds inadequate controls.