WalaoHaze: live haze photos and PSI across Singapore

Not for short trips, like walking to the bus stop or the mall, or when you're indoors. Wear a well-fitted N95 if you'll be outside for several hours and:

• PSI is above 300 (Hazardous) and you're healthy, or
• PSI is above 200 and you're elderly, pregnant, or have heart or lung disease.

N95s make breathing harder, so take a break if it feels uncomfortable. If you're elderly, pregnant or have a heart or lung condition, ask your doctor first.

No international standard (like N95) certifies masks for children. Keeping them indoors protects them best:

• PSI above 100: cut down on long or energetic outdoor play.
• PSI above 300: no outdoor activity.

• Close doors and windows when the air gets worse. Open them again once it clears.
• Run an air purifier with a HEPA filter sized for the room. A higher CADR cleans faster. NEA guide
• Aircon and fans are fine. If your unit pulls in outside air, close its fresh-air intake.
• Mop, don't dust. Dry dusting and vacuuming kick particles back into the air.
• Skip candles and smoking indoors.

See a doctor promptly if you have trouble breathing, especially if you have a heart or lung condition. This applies even when the PSI is low.

Readings come live from NEA through data.gov.sg and refresh every few minutes. The 24-hr PSI sets the day's health advice. The 1-hr PM2.5 tells you what to do in the next hour.

• NEA: How to plan your outdoor activities during haze (June 2026)
• NEA: Air Pollution FAQs, with the MOH health advisory
• data.gov.sg: real-time PSI and PM2.5

WalaoHaze is a community project, not affiliated with NEA or MOH. Always follow official advisories at haze.gov.sg and the myENV app.