If you stepped outside this morning and felt it in your throat before you saw it in the sky, you are not imagining things. The haze is back, and this week it is properly bad.
At 9am today (16 October), Pasir Gudang in Johor hit an API of 207, which is in the very unhealthy range. Another 30 areas across the country were in the unhealthy range. Here in the Klang Valley, the Department of Environment recorded 181 in Klang, 174 in Putrajaya, 173 in Petaling Jaya, 171 in Shah Alam and 168 in Cheras.
So the real question most of us are asking is simple: is this just annoying, or should I be seeing a doctor? Here is how to tell.
First, what do the API numbers mean?
- 0 to 50: Good.
- 51 to 100: Moderate. Most people are fine.
- 101 to 200: Unhealthy. Sensitive groups will feel it first, and everyone should cut down on time outdoors.
- 201 to 300: Very unhealthy. Stay indoors as much as possible.
- Above 300: Hazardous.
Check the latest reading for your area on the Department of Environment's APIMS portal or app before you head out, especially if you are planning outdoor exercise or school runs.
Who needs to be most careful
- Babies and young children, because they breathe faster and their lungs are still developing.
- Older adults, especially those with heart or lung conditions.
- Anyone with asthma, COPD or other long term lung problems.
- People with heart disease.
- Pregnant women.
If you have a parent or grandparent at home, keep a closer eye on them this week. Older people often brush off symptoms or do not notice them until they are worse.
Normal haze irritation
These are common and usually settle when you stay indoors and rest:
- Itchy, watery or red eyes
- Sore or scratchy throat
- Runny or blocked nose
- A mild, dry cough
- Feeling a little more tired than usual
When it is time to see a doctor
Book a visit to your GP or clinic if you notice any of these:
- Shortness of breath, wheezing or chest tightness
- Needing your asthma reliever inhaler more often than usual
- A cough that keeps getting worse or lasts more than a few days
- Fever along with a cough or sore throat
- A child breathing faster than normal, or struggling to feed or sleep
- An older person who seems unusually drowsy, confused or breathless
Go to the emergency department or call 999 immediately for severe breathlessness, chest pain, lips or fingertips turning blue, or someone who is difficult to wake.
Simple ways to protect your family
- Stay indoors and keep doors and windows closed when the API is above 100.
- Use an air purifier with a HEPA filter in the room you spend the most time in, such as the bedroom.
- If you must go out, wear a well fitted N95 mask. Normal cloth or surgical masks do not filter the fine haze particles well.
- Skip outdoor exercise for now. Move your workout indoors.
- Drink plenty of water to keep your throat and airways moist.
- If you or a family member has asthma or a heart condition, make sure your medicines and inhalers are stocked up, and follow the plan your doctor has given you.
What about schools?
On 15 October, the Ministry of Education confirmed it is back to its existing haze plan: schools close when the API reaches 200, outdoor activities stop once it passes 100, and parents may choose to keep their children at home when the air is bad. Keep an eye on your school's announcements, as decisions are made based on local readings.
The bottom line
For most healthy adults, the haze is uncomfortable but manageable if you limit your time outdoors. For children, older family members and anyone with heart or lung conditions, take it more seriously, and do not wait it out if breathing gets harder. When in doubt, get checked.
Stay safe, stay indoors when you can, and look out for the people around you who may not speak up.
This article is for general awareness and does not replace advice from your own doctor.
Sources: Department of Environment API readings as reported by Malay Mail (16 October 2026), and the Ministry of Education's haze guidelines as reported by Malay Mail (15 October 2026).
