Created for expats living in Japan

How to Clean a Japanese Air Conditioner Filter: Save on Energy Bills with Easy DIY Tips

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This article is contributed by Pinay Housekeeping Service.

Here's a simple guide on how to clean your Japanese air conditioner filters yourself, without the need for special tools or professionals.

Neglecting a dusty or pollen-covered filter not only increases health risks but also significantly impacts electricity costs. Simply cleaning the filter can dramatically improve the efficiency of your air conditioner and help you save on electricity.

Steps for Cleaning Your Air Conditioner Filter

1. Remove the Filter

Unplug the unit for safety.

Open the front cover.

Take out the filter, which often has invisible dust.

Lightly clean the main unit with a handheld vacuum or microfiber cloth.

2. Vacuum the Filter

Use a handheld vacuum to remove dust from the filter, laying newspaper or plastic underneath to catch falling dust.
Vacuum in a consistent direction (vertical or horizontal) to ensure thorough cleaning.

Important: Only vacuum the dusty front side of the filter to avoid pushing dust into the mesh.

3. Wash if Heavily Soiled

If vacuuming doesn’t clean it completely, wash the filter under a shower.
Use a toothbrush for stubborn dirt but avoid scrubbing too hard to prevent damage.

Important: Rinse from the back side to push out dust.

4. Reinstall the Filter

Ensure the filter is completely dry before reinstalling.

Reinsert the filter into the main unit.
Close the cover and plug the unit back in.

Summary: Regular Filter Cleaning Saves Electricity!

In Japan, regular maintenance, such as vacuuming monthly, will keep your air conditioner efficient and save you money on your electricity bill. Clean the filter thoroughly with water before the summer and winter seasons. Regular cleaning will prevent dust from building up and make future cleaning easier. Try it at home too.

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