Do you think "deep cleaning is something you do at the end of the year"?
Actually, cleaning in October is the biggest key to making the end of the year easier. Autumn is a time when temperatures and humidity are stable, making it easy to move around and dirt is easy to remove. Furthermore, by preparing appliances and housing equipment that are frequently used in winter in advance, you can not only welcome winter comfortably, but also significantly reduce the burden of deep cleaning.
Therefore, this time, we will introduce cleaning tips for appliances and homes that are essential for winter living, including professional perspectives.
◆Essential before winter use! Air conditioner filter cleaning
Air conditioners used for heating in winter. If you operate them without cleaning the filters, not only will your electricity bill increase, but it can also scatter mold and dust mite cells into your room.
Cleaning tips
- First, vacuum the dust from the filter, then rinse it with lukewarm water. Make sure to dry it thoroughly before putting it back.
- If there is black mold on the air outlet or louvers, wipe it off with a cloth moistened with alcohol spray.
- Also check for fallen leaves or debris around the outdoor unit.
👉 If you reset it once in the fall, you can keep the winter air clean.
◆When cleaning a humidifier, the correct answer is to do it "before use"
Humidifiers are essential for combating dryness in winter. They are used daily during the season, making them an appliance that is surprisingly often overlooked. In particular, the water tanks and filters from the previous season often have limescale and germs remaining, and using them as they are can scatter germs throughout the room.
Cleaning tips
- Clean the tank with citric acid water (about 200ml water with a small amount of citric acid). Water stains and limescale will be removed cleanly.
- For filters, refer to the instruction manual for your model and either wash with water or replace them.
- After cleaning, dry it with "dry operation" to prevent mold.
👉 Maintenance before starting to use it is the biggest trick to getting your humidifier running.

◆ Safely remove dust and mold from heating appliances
Kerosene fan heaters, electric stoves, oil heaters, etc., accumulate a lot of dust during storage. If you light them as they are, they can emit an unpleasant odor, or in the worst case, lead to a fire.
Cleaning tips
- Carefully vacuum the air intake and outlet.
- For models with filters, remove them and wash them with water.
- For kerosene fan heaters, always check the fuel tank and do not use old kerosene.
👉 You can welcome winter with peace of mind, knowing that it has been checked to be in a safe usable state.
◆Before condensation! Tips for cleaning windows and sashes
In winter, condensation forms on windows, and if left unattended, it becomes a hotbed for black mold. It is recommended to clean them while it is dry in autumn.
Cleaning tips
- Scrape out dirt from sash grooves with an old toothbrush and vacuum it up.
- Wipe glass with newspaper or a microfiber cloth for a sparkling finish.
- If applying anti-condensation tape or insulation sheets, do so only after cleaning.
👉 If you prepare below, you can prepare for winter condensation problems in advance.

◆Autumn is the best time for range hood grease stains
Many people say, "I'll clean the range hood during the year-end deep cleaning," but it's actually more efficient to do it in the fall. The reason is that grease stains haven't hardened due to lower temperatures yet.
Cleaning tips
- Soak the filter in lukewarm water with dissolved baking soda or sodium sesquicarbonate.
- Scrub the blades (sirocco fan or propeller) with a sponge and neutral detergent.
- Make sure to dry the cleaned parts thoroughly before putting them back.
👉 It's more efficient and comfortable to do it in the fall than to struggle during the cold winter months.
Summary: October cleaning for a comfortable winter
Air conditioners, humidifiers, heating appliances, windows, ventilation fans— these are all important facilities and appliances directly related to winter living. If you clean them thoroughly during the pleasant month of October, you will not only be able to welcome a clean and comfortable winter, but also make year-end deep cleaning surprisingly easy.
This year, please make "autumn cleaning" a habit to make your winter life more comfortable and secure.
