This is a common question. An aircon-induced sore throat is typically due to dryness and is often accompanied by a general feeling of dryness in the nose and eyes. It usually develops after prolonged exposure. An allergic reaction (often to dust mites, mould, or pollen circulated by the AC) usually includes additional symptoms like sneezing, itchy/watery eyes, a runny nose, and congestion. If your symptoms are multifaceted, allergies are a likely culprit.

Health experts, including Singapore’’s National Environment Agency (NEA), recommend a temperature setting of 25°C. This temperature is cool enough for comfort but minimizes the extreme dryness and shocking temperature difference when you go outdoors. It is also the most energy-efficient setting.

Yes, absolutely. A musty smell is a strong indicator of mould or mildew growth within the air conditioning unit, often in the damp cooling coils or dirty filters. When the AC is turned on, it blows these spores and other allergens into your room. Inhaling them can irritate your throat, sinuses, and lungs, leading to a sore throat, coughing, or allergic reactions (often called “aircon sickness”).

For a typical household in Singapore, a professional chemical wash and servicing are recommended every 3 to 6 months. This is due to the unit’s constant usage in a dusty and humid environment. Regular maintenance (like cleaning filters every 2 weeks) is crucial in between professional services to ensure clean, healthy air quality and prevent microbial growth.

The fan speed is critical. Avoid setting it to “High” while directly blowing on you, as this accelerates moisture loss from your skin and throat. Use a low or medium setting and adjust the louvers to point upwards for better air circulation without a direct draft.
If your unit has a “Dry” or “Dehumidify” mode, use it. This mode reduces humidity without overcooling the room, making it more comfortable and less harsh on your throat.

This is a classic sign of nighttime aircon dryness. Solutions include:

• Using a Humidifier: This is the most effective solution to add moisture back into the air.
• Staying Hydrated: Keep a glass of water by your bed.
• Gargling with Salt Water before bed to soothe the throat membranes.
• Breathing Through Your Nose: Your nose naturally humidifies and warms air before it reaches your throat.

Yes, children and infants are more vulnerable. Their respiratory systems are more sensitive, and their bodies lose moisture faster. It’s especially important to ensure their room is not too cold, that the air flow is not direct, and that the aircon unit is kept very clean to avoid circulating irritants.

Absolutely. A clogged air filter cannot trap dust, pollen, bacteria, and mould spores effectively. These pollutants are then recirculated in the air you breathe, directly contributing to throat irritation, allergies, and respiratory issues. Cleaning your reusable filter every two weeks is a simple but critical health measure.

While most aircon-related sore throats are mild, you should consult a doctor if:

• The sore throat is severe or persists for more than a week.
• It is accompanied by a high fever, difficulty breathing, or swollen glands.
• You have difficulty swallowing.
• This could indicate a viral or bacterial infection that requires medical treatment.