Running, cycling and sport
When API exceeds 100, reduce prolonged or strenuous outdoor exercise. Consider indoor activity or postponing a workout. If breathing becomes difficult, seek medical assessment.
Kuala Lumpur (KL) API Today: Live Haze Air Pollutant Index
Kuala Lumpur & Klang Valley / Air Quality
Check the latest available official Air Pollutant Index (API / IPU) readings for Kuala Lumpur and nearby Klang Valley areas. Compare stations around Cheras, Batu Muda, Petaling Jaya, Shah Alam and Klang, and see what the air quality means for your day.
Malaysia Department of Environment / APIMS
View Malaysia-wide API →Latest API readings in KL & the Klang Valley
A reading belongs to a specific monitoring station, not to the entire city. Click a station to see its observation time, category and guidance.
Loading KL monitoring stations
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Awaiting reading
Latest observation · Malaysia time
Today's air quality guidance
Select a reporting station to see advice based on its API category.
Stations around KL & Klang ValleyLoading...
Checking monitoring stations...
Malaysia API: Good 0–50 Moderate 51–100 Unhealthy 101–200 Very unhealthy 201–300 Hazardous above 300
The map uses nearby reporting stations, not an exact reading at every address. Times shown are the observation times provided by DOE in MYT.
Plan your day
What today's API means for your day in KL
Pollution levels can vary between Cheras, Petaling Jaya and Klang even on the same day. Check your nearest station before exercising, commuting or taking children outdoors.
Travel and outdoor exposure
When conditions are poor, spend less time in polluted outdoor air. In a car, closing windows and using air-conditioning recirculation can help limit incoming particles.
Children, seniors and higher-risk groups
People with asthma, COPD, heart disease or other vulnerabilities should take additional care. Continue prescribed medicines and seek advice if symptoms worsen.
Local context
Why does haze build up over the Klang Valley?
Kuala Lumpur and neighbouring urban areas sit in a valley surrounded by highlands. At times, weak winds and stable weather can slow the dispersal of pollutants, while smoke transported from other areas can add to locally generated pollution.
Why readings differ between neighbourhoods
Wind direction, rainfall, emissions and terrain can all affect local air quality. A station in Batu Muda or Cheras may report a different API reading from Petaling Jaya, Shah Alam or Klang.
Should windows stay closed?
During heavy haze, limit the entry of polluted outdoor air. When outdoor air improves, ventilate the home as appropriate so indoor pollutants and carbon dioxide do not build up unnecessarily.
These are general explanations for Klang Valley air quality; they do not establish the cause of any particular episode.
Find a nearby pharmacy
CARiNG pharmacies near you in KL & Klang Valley
Find CARiNG pharmacies around KL city centre on Google Maps. Select a store below or use your location to look for branches closer to you.
Nearby CARiNG pharmacies on Google MapsLoading map results for Kuala Lumpur...
Near Kuala Lumpur city centreApproximate straight-line distances
All outlets →Finding nearby CARiNG pharmacies...
Google Maps listings may differ from our featured outlet list. Distances are approximate straight-line estimates.
Haze essentials
Visit CARiNG eStore →Shop haze essentials at CARiNG
Explore eight CARiNG eStore essentials, including adult and children's KN95/KF94 masks, eye drops, nasal care and lozenges. Choose a well-fitting particulate respirator when appropriate, and speak to a pharmacist if you need advice.
Prices were checked against CARiNG eStore listings during page preparation and may change. Final prices and availability are confirmed on the product page.
Malaysia's official scale
How to read today's Air Pollutant Index (API) in KL
The same five Malaysia API categories are used for every number on this page. Malaysia's API / IPU is different from the US AQI used by IQAir.
0–50Good
Usual outdoor activities generally suitable.
51–100Moderate
Most can continue usual activities; sensitive people monitor symptoms.
101–200Unhealthy
Reduce prolonged or strenuous outdoor activity.
201–300Very unhealthy
Avoid unnecessary outdoor exertion.
Above 300Hazardous
Avoid outdoor activities; follow official advice.
The categories apply to Malaysia DOE API readings only. Check the observation time before relying on a station value.
Practical answers
KL haze and API: frequently asked questions
Is it hazy in KL today?
Check the latest available DOE API reading for Batu Muda, Cheras or another nearby monitoring station above. Conditions may differ from Petaling Jaya or Klang. The observation time shows when that reading was reported.
Which API stations cover Cheras, Petaling Jaya, Shah Alam and Klang?
Use the station list and map above to see which monitoring locations are currently reporting. A station may be near your neighbourhood without measuring air quality at your exact address.
What API level is unhealthy in Kuala Lumpur?
Malaysia API of 101–200 is Unhealthy, 201–300 is Very unhealthy, and above 300 is Hazardous. The guidance applies nationwide, including KL and Selangor.
Can I exercise outdoors when API exceeds 100?
Reduce prolonged or strenuous outdoor activity above API 100, especially if you have asthma, heart or lung problems or other sensitivities. Consider indoor exercise and seek care for concerning symptoms.
Should windows stay closed during Klang Valley haze?
Reduce the entry of polluted outdoor air during heavy haze. When outdoor air quality improves, appropriate ventilation helps manage indoor carbon dioxide and other pollutants.
Should I use an N95 mask or a 3-ply surgical mask?
A genuine, properly fitting N95 or comparable particulate respirator gives better filtration against fine haze particles than a loose 3-ply surgical mask. Fit and suitability are important.
Why is IQAir AQI different from Malaysia DOE API?
IQAir commonly displays US AQI, which has different calculations, bands and monitoring coverage from Malaysia's API. The numbers cannot be compared as if they were the same index. This page uses Malaysia API only.
More haze health guides from CARiNG
Professional advice
Find a CARiNG Pharmacy →
Ask a CARiNG pharmacist
Not sure which mask to choose or how to manage dry eyes, nasal irritation or existing asthma medication during haze? Our pharmacy teams can help you understand suitable options.
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