El Niño is far more than just hotter afternoons.
Across many parts of Southeast Asia, El Niño often brings prolonged dry weather, higher temperatures, lower humidity, increased wildfire risk, worsening haze conditions and poorer air quality. While these changes may seem gradual, they can significantly affect your health, productivity and overall wellbeing.
Many people prepare only after the haze arrives or after temperatures become unbearable. By then, they may already be dealing with dehydration, respiratory irritation or unnecessary exposure to fine airborne particles.
The good news is that most of these problems are preventable.
Here are seven common mistakes people make during El Niño season and what you can do instead.
1. Waiting Until the Air Looks Bad
One of the biggest misconceptions is believing that poor air quality is only dangerous when you can actually see smoke or haze.
In reality, harmful fine particles such as PM2.5 are often invisible. Even when the sky appears relatively clear, air quality may already be deteriorating.
These microscopic particles can travel deep into the lungs and may aggravate conditions such as:
- Asthma
- Allergies
- Sinus irritation
- Bronchitis
- Heart disease
- Eye irritation
Instead of relying on visibility alone, monitor local air quality reports and reduce prolonged outdoor exposure when pollution levels rise. Health authorities note that well-fitted respirators such as N95 or equivalent masks are appropriate for prolonged exposure during severe haze conditions.
2. Wearing the Wrong Type of Mask
Not every face mask provides the same level of protection.
Many people continue using:
- Cloth masks
- Fashion masks
- Basic disposable masks
These are useful for reducing droplets but are not designed to filter the fine particles commonly found during haze episodes.
Respirators such as KN95 and N95 masks are designed to filter at least 95% of airborne particles around 0.3 microns when properly fitted, making them more suitable for haze protection.
If you are unsure which mask is suitable, Wistech has an in-depth guide comparing the differences between KN95 and N95 masks.
For those looking for certified respirators, Wistech also offers a range of adult and children's KN95 masks:
https://wistech.com.sg/collections/kn95-adult-kids
3. Forgetting That Heat Can Be Dangerous
El Niño isn't just about haze.
Extreme temperatures place additional stress on the body.
Common symptoms include:
- Fatigue
- Dizziness
- Headaches
- Muscle cramps
- Heat exhaustion
- Reduced concentration
Those working outdoors, exercising or commuting long distances are particularly vulnerable.
Simple preventive measures include:
- Drinking water regularly before feeling thirsty
- Wearing light coloured clothing
- Taking frequent breaks
- Avoiding strenuous outdoor activities during peak afternoon hours
Children and older adults are especially susceptible because they regulate body temperature less efficiently.
4. Staying Indoors Without Improving Indoor Air Quality
Many people believe staying indoors automatically protects them.
Unfortunately, outdoor pollutants can still enter buildings through:
- Open windows
- Doors
- Air conditioning systems
- Ventilation gaps
Indoor air quality can deteriorate quickly during haze periods.
Simple improvements include:
- Closing unnecessary windows
- Using air purifiers with HEPA filters
- Cleaning filters regularly
- Vacuuming dust more frequently
- Limiting smoke from cooking
Keeping indoor air cleaner reduces cumulative exposure throughout the day.
5. Ignoring Respiratory Symptoms
A mild cough during haze season might not seem serious.
However, persistent symptoms should never be ignored.
Watch for:
- Persistent coughing
- Wheezing
- Shortness of breath
- Chest tightness
- Eye irritation
- Sore throat
People with asthma, COPD or heart conditions should pay particular attention because poor air quality can worsen existing medical conditions.
If symptoms persist or become severe, seek medical attention promptly.
6. Assuming Young and Healthy Means Immune
Many healthy adults believe haze only affects the elderly.
While vulnerable groups experience greater risk, even healthy individuals may notice:
- Reduced athletic performance
- Irritated eyes
- Sore throat
- Reduced lung function after prolonged exposure
- Fatigue
Outdoor runners, cyclists, delivery riders and construction workers are particularly exposed because they inhale significantly larger volumes of air during physical activity.
Reducing unnecessary exposure can improve both comfort and long-term respiratory health.
7. Waiting Until Supplies Run Out
Every haze season follows a similar pattern.
Demand for quality respirators rises sharply.
Popular sizes and colours often sell out quickly.
Waiting until haze becomes severe usually means:
- Limited stock
- Higher prices
- Fewer choices
- Delayed deliveries
Planning ahead helps ensure your family has appropriate protection before demand spikes.
Keeping several properly stored KN95 respirators at home, in the car and at the office makes preparation much easier.
Browse Wistech's selection of KN95 protective masks here:
https://wistech.com.sg/collections/kn95-adult-kids
Who Should Be Extra Careful During El Niño?
Certain groups are more vulnerable to poor air quality and extreme heat.
These include:
- Young children
- Elderly individuals
- Pregnant women
- People with asthma
- Individuals with chronic lung diseases
- Heart disease patients
- Outdoor workers
- Athletes
These groups should minimise prolonged outdoor exposure whenever air quality deteriorates.
Simple Daily El Niño Checklist
✔ Check the air quality before heading outdoors
✔ Drink sufficient water throughout the day
✔ Avoid prolonged outdoor exercise during peak heat
✔ Keep windows closed when haze worsens
✔ Use an appropriate KN95 or N95 respirator during prolonged exposure
✔ Keep extra masks available at home and at work
✔ Watch for symptoms such as coughing, wheezing or dizziness
Final Thoughts
El Niño affects more than just the weather. It influences air quality, hydration, respiratory health and daily comfort.
Fortunately, many of the risks associated with hot and hazy conditions can be reduced through simple preparation and informed decisions.
Understanding these common mistakes allows you to better protect yourself, your family and your colleagues throughout the season.
Whether you're commuting, working outdoors or simply running daily errands, small preventive actions today can make a significant difference tomorrow.