Step-by-Step Guide to Cleaning Aircon Filters at Home
Introduction
In Singapore’s tropical heat, air conditioners run almost non-stop — especially during humid nights or mid-day peaks. Over time, dust, pet dander, and airborne particles clog your aircon filters, reducing airflow and efficiency. A simple cleaning routine can go a long way in keeping your unit performing smoothly while saving on electricity.
Singapore Context
Whether you live in an HDB flat, a high-rise condo, or a landed home, your aircon works hard against the island’s humidity and urban dust.
- HDB units tend to accumulate fine particles due to close proximity to roads and construction sites.
- Condos often have centralized systems or wall-mounted units shared across rooms.
- Landed homes may have larger, multi-split systems with more extensive ductwork.
In all these settings, one habit matters most — cleaning your air filters every few weeks.
Why Cleaning Aircon Filters Matters
Clogged filters block airflow, forcing your aircon to work harder. The result: higher bills, reduced cooling, and potential compressor strain.
Clean filters can:
- Improve cooling efficiency by up to 30%.
- Extend the lifespan of your system.
- Maintain better indoor air quality, especially important in Singapore’s dense living spaces.
Tools You’ll Need
Before you start, prepare these simple tools:
- A small vacuum cleaner or handheld blower
- Mild detergent or dish soap
- A soft brush or old toothbrush
- A basin or sink
- A dry towel
Step-by-Step: How to Clean Aircon Filters at Home
| Step | Action | Details |
|---|---|---|
| 1 | Turn Off the Aircon | Always switch off and unplug your unit to ensure safety. |
| 2 | Open the Front Cover | Gently lift or slide open the front panel — most models snap open easily. |
| 3 | Remove the Filters | Pull out the mesh filters carefully to avoid bending or tearing. |
| 4 | Vacuum Off Loose Dust | Use a soft brush attachment to remove loose dust. |
| 5 | Wash with Mild Soap | Soak the filters in warm soapy water for 10–15 minutes, then gently brush away grime. |
| 6 | Rinse and Dry | Rinse under running water, then let the filters dry completely — avoid direct sunlight to prevent warping. |
| 7 | Reinstall Filters | Once dry, place them back securely and close the panel. |
How Often Should You Clean Them?
- Every 2–3 weeks if you use your aircon daily (common in Singapore).
- Once a month for moderate use.
- Twice a month if you have pets or live near construction zones.
Neglecting filter maintenance can cause odours, leaks, and even trigger allergies.
DIY vs Professional Cleaning
Basic filter cleaning is safe to do yourself. However, deeper cleaning — involving coil washing, drainage flushing, and fan blower disassembly — should be handled by professionals.
For a thorough service, companies like ACX.WORKS provide chemical washes and maintenance packages across HDBs, condos, and offices.
| Task | DIY | Professional |
|---|---|---|
| Filter cleaning | ✅ Easy & safe | ✅ Included in all servicing |
| Coil cleaning | ❌ Risky | ✅ Proper tools & chemicals |
| Drain flushing | ❌ Requires pressure tools | ✅ Done safely |
| Gas top-up | ❌ Technical | ✅ With certified technicians |
Signs You’ve Waited Too Long
- Cooling feels weak even on full blast
- Water leaking or dripping from the indoor unit
- Musty or sour smell when turning it on
- Noticeably louder operation
If these happen, your filters may be clogged — or the entire system needs a chemical wash.
Health and Energy Benefits
A clean filter means:
- Less dust and mould circulation indoors
- Reduced allergy or sinus flare-ups
- Lower power consumption and quieter operation
Cleaner air isn’t just a comfort — it’s part of healthy living in high-density Singapore homes.
Cost & Maintenance Frequency
Filter cleaning costs nothing but time if you do it yourself. But regular professional aircon servicing in Singapore ranges roughly as follows:
| Service Type | Typical Cost (SGD) | Recommended Frequency |
|---|---|---|
| General Cleaning | $25–$40 per unit | Every 3 months |
| Chemical Wash | $60–$90 per unit | Every 6 months |
| Chemical Overhaul | $120–$150 per unit | Yearly or as needed |
Professional maintenance keeps your aircon’s cooling coil, blower, and drainage system in top shape — beyond what DIY cleaning can reach.
Quick Benefits Recap
- ✅ Saves electricity
- ✅ Prevents breakdowns
- ✅ Keeps air fresh
- ✅ Extends unit lifespan
- ✅ Avoids costly repairs later
FAQ
1. Can I clean filters with vinegar or baking soda?
Mild detergent is enough. Vinegar can damage coatings on certain filters.
2. What happens if I don’t clean them for months?
Expect weak cooling, higher power bills, and possible water leaks.
3. Do inverter aircons need more cleaning?
No, but inverter models benefit from regular cleaning to maintain energy efficiency.
4. Can I dry the filters with a hairdryer?
Avoid heat — it may warp the mesh. Let them air dry naturally.
5. How do I clean if my aircon is mounted high?
Use a stable ladder or step stool. Never overreach; safety first.
6. Should I spray disinfectant on the filters?
Only use mild, non-corrosive sprays after washing and drying.
7. Where can I book a full service?
You can check ACX.WORKS for trusted aircon cleaning services across Singapore.
Conclusion
A 10-minute cleaning routine every few weeks can extend your aircon’s life, keep your home cool, and save money. When deeper cleaning is due, professional technicians at ACX.WORKS can handle the job safely and thoroughly — so your air stays crisp even in Singapore’s hottest months.
