A Story from the Field: The Wardrobe Muk Had to Close Again Immediately

"Muk" works for a company in one of the industrial estates around Lat Krabang. She rents a single-storey detached house in a housing estate near Romklao Road with her husband and their six-year-old son. This year, water from the canals and the estate's drains overflowed into the neighbourhood and stood inside the house, about a hand-span deep, for almost ten days. The family moved to her parents' place in Min Buri until it was over.

When they came home, the first room Muk went to was the bedroom. She was worried about the big particle-board wardrobe that held her work clothes, her son's school uniforms, and a leather handbag she loved, a birthday gift from her husband. The moment she opened the doors, a wave of damp, sour, musty air rolled out and she shut them again. The base of the wardrobe had swollen and rippled. The shirts folded on the bottom shelf were covered in tiny black spots. Three pairs of leather shoes on the floor of the wardrobe had grown patches of white, fuzzy mold. Even the leather handbag, hanging well above the water line, had pale green spots along its seams.

Muk took every piece of clothing and washed it twice with ordinary detergent. Some items came out fine. Many still smelled musty once they dried. Worse, even with the wardrobe empty, the bedroom itself kept a stale, damp smell. Her son started sneezing every morning and his nose ran all day. Muk began to suspect that the problem was not just the clothes, but the wardrobe and the air in the room as well.

Muk's experience is a composite of what we see in many homes across Lat Krabang, Prawet, Min Buri, Nong Chok and the rest of eastern Bangkok in 2026. In this article we go through it step by step: the wardrobe, clothing, shoes and leather goods, and finally how to restore the bedroom so it is clean and free from that persistent musty smell.

Why Wardrobes and Personal Items Grow Mold So Quickly After a Flood

Mold needs three things: moisture, food and still air. A wardrobe after a flood offers all three in abundance. Plywood and particle board soak water deep into their core. Cotton clothing, genuine leather and the glues used in shoes are excellent food for fungi. And a wardrobe with its doors closed traps humid air inside, so the moisture level in the cabinet can be far higher than in the room around it.

In Bangkok's hot, humid climate, mold can start to grow on wet materials within one or two days. Once it is established, it releases spores that drift onto other clothes, curtains, mattresses and walls. A problem that starts in one wardrobe quickly becomes a problem for the whole bedroom.

There is also the matter of what the floodwater carried with it. Water that flows through streets and drains picks up sewage, oil, rubbish and soil. When it soaks into fabric and wood, it leaves behind organic residue and bacteria as well as moisture. That is why clothes from a flooded wardrobe often smell sour as well as musty, and why a quick rinse is rarely enough.

The consequences

• Health. Mold spores can trigger allergic reactions such as sneezing, a blocked or runny nose, red itchy eyes and skin irritation, and they can make asthma worse. Children and older people who spend long hours in the bedroom are especially vulnerable. Wearing moldy clothing that has not been properly cleaned may also irritate the skin. Handling flood-soaked items with bare hands that have cuts adds the risk of infection, including leptospirosis.
• Money. Work clothes, school uniforms, shoes and leather bags add up to a substantial amount. Throwing everything away is painful. Keeping everything without treating it correctly means paying for repeated washing or professional cleaning.
• Time and confidence. Nobody wants to go to work or school in clothes that smell stale. A musty odor that follows you around all day is embarrassing and draining.

This is general information, not medical advice. If anyone has breathing difficulty, a spreading rash or a fever after contact with floodwater, please see a doctor and follow guidance from Thailand's Department of Health.

Sort First: What to Throw Away and What You Can Save

The wardrobe itself

• Plywood or particle-board wardrobes with a swollen or bubbling base, or laminate that is peeling away, usually need to be replaced. Moisture and mold are locked inside the board and are very hard to remove.
• Solid wood, metal or rigid plastic wardrobes that are still structurally sound can be cleaned, disinfected, dried and deodorised.

Clothing and textiles

• Hot-washable fabrics such as cotton, towels and school uniforms should be washed separately from your unaffected laundry, using warm or hot water as the care label allows, then dried completely in strong sunlight.
• Delicate or dry-clean-only items such as suits and silk should go to a dry cleaner. Tell them the items were in a flood.
• Fabrics with heavy mold that has weakened the fibres, or items that still show black stains and smell after washing, are best discarded, particularly underwear and children's clothing.

Shoes and bags

• Canvas and rubber shoes can be washed. Remove the insoles and wash them separately, then dry everything in a breezy, shaded spot.
• Leather shoes and leather bags that sat under water for a long time often become stiff, with mold penetrating into the hide. If they are valuable, consult a leather repair specialist. Items that were only exposed to damp air and have surface mold can usually be cleaned using the steps below.
• Inexpensive shoes with detached soles, failed glue or a strong smell are usually cheaper to replace than to rescue.

Other items stored in wardrobes

• Cardboard boxes, paper bags and shoe boxes that got wet should be thrown away. They hold moisture and are a favourite place for mold to grow.
• Photographs and documents need special handling. Separate them gently, dry them flat away from direct sun, and make digital copies of anything important as soon as possible.
• Belts, wallets and small leather goods follow the same rules as bags: surface mold can be cleaned, but deeply soaked pieces may not recover.

Why Leather and Shoes Need Special Attention

Leather is skin that has been tanned and treated, and it behaves very differently from fabric. It is porous, it holds natural oils and finishing products, and it absorbs moisture slowly but releases it even more slowly. In a flooded wardrobe, that makes it one of the first materials to show mold and one of the last to dry out. White or greenish fuzz on a leather bag or shoe is usually a sign that mold has been feeding on the surface oils and dirt, and if the item was actually submerged, it may have reached deeper into the hide.

Shoes add another layer of difficulty. Most are built from several materials at once: leather or fabric uppers, foam padding, cardboard or fibre stiffeners, rubber soles and adhesives. Each of these reacts to water differently. Cardboard stiffeners soften and lose their shape, foam soaks up water like a sponge, and some glues weaken and let soles separate. Even when the outside looks clean, the inside of a shoe can stay damp for days and develop a sour, musty smell that is very hard to remove.

That is why it is worth being realistic. A pair of good leather work shoes that sat in damp air but was never submerged can often be brushed, cleaned, dried slowly and conditioned back to good health. A cheap pair that spent a week under water is usually not worth the effort. For valuable or sentimental leather items, such as Muk's birthday handbag, the safest route is to remove surface mold outdoors, let the item dry slowly in the shade, and then ask a leather care specialist for advice before doing anything more aggressive.

During ozone treatment of the room, valuable leather goods should be removed or covered. Ozone is effective against odor and spores, but prolonged exposure can dry out natural oils in fine leather and affect some finishes. Treating the room and the wardrobe while keeping your best leather pieces safely outside is the best of both worlds.

Cleaning It Yourself, the Right Way

1. Protect yourself. Wear a mask and gloves and work in a well-ventilated place. Shaking out moldy clothes releases a cloud of spores.
2. Empty the wardrobe completely. Take everything outside the bedroom, for example to a balcony or the yard. Do not shake fabrics out inside the room.
3. Wash clothes quickly. The longer they sit, the deeper the mold penetrates. Wash them separately from unaffected laundry and dry them fully in strong sun before storing.
4. Clean leather carefully. Outdoors, brush off surface mold with a soft brush. Wipe with a cloth lightly dampened with a leather cleaner. Let it dry in a shaded, breezy place. Never leave leather in strong sun or blast it with a hot hair dryer, which will crack it. Once it is fully dry, apply a leather conditioner.
5. Clean the wardrobe. Wipe the inside and outside with a disinfectant according to its label. Leave the doors open and use a fan to help it dry over several days.
6. Do not put clothes back yet. Wait until the wardrobe and the room are completely dry and odor-free. Otherwise freshly washed clothes will pick up the musty smell again.

Why the Musty Smell Keeps Coming Back After Washing and Wiping

• Washing the clothes but not treating the wardrobe and room. Spores hiding in the wood, in hinge recesses, curtains and walls settle right back onto freshly washed clothes.
• Mothballs or scented sachets in the wardrobe. These mask odor; they do not kill mold. Mothballs also contain chemicals that are not ideal in a room where children sleep.
• Relying only on silica gel or moisture absorbers. They help a little in small, dry cupboards, but they cannot cope with a wardrobe that has actually been flooded.
• Repainting or re-papering the bedroom immediately. If the walls are still damp, mold will grow underneath and the smell will return.
• Using bleach on leather or coloured fabrics. It causes discoloration and damages leather, and it does nothing about the smell in the room.

In short, the clothes are only one part of the problem. The real source of the musty smell is the bedroom as a whole, and it needs to be treated at the same time for a lasting result.

The Solution: Ozone Treatment and Disinfection for the Bedroom and Wardrobe with WHD

World Health Disinfection (WHD) deals with what washing and wiping cannot reach, using two complementary steps.

Ozone treatment

Our ozone treatment service uses ozone gas, which penetrates wood grain, hinge recesses, the gaps behind and beneath wardrobes, and the fibres of curtains. Ozone is a strong oxidiser that breaks down musty odor molecules and damages mold spores floating in the room. It is well suited to bedrooms and closed wardrobes, where air does not circulate naturally.

Disinfection fogging

Our disinfection spraying service applies CHEMGENE HLD4H as an ultra-low-volume (ULV) mist to the floor, the lower walls that were under water, the wardrobe body and door frames, reducing flood-borne germs left on these surfaces.

Our process

1. Site survey. We check the flood level, the condition of the wardrobe, where mold has appeared and how damp the walls are.
2. Removal and sorting advice. We advise which wardrobes or items should be replaced and which can be kept, and ask that washed clothing be moved out of the room before treatment.
3. Disinfection fogging. We treat the floor, lower walls, and the wardrobe inside and out.
4. Ozone treatment. All wardrobe doors and drawers are opened, the room is closed, and ozone is applied for a period matched to the room size. The dose is controlled. Valuable leather goods, silk, collectibles and sensitive electronics should be removed or covered first.
5. Ventilation. Doors and windows are opened so the ozone can revert to oxygen before anyone goes back in.
6. Re-check. We check odor and risk points again and give advice on storing clothes so mold does not return.

Ozone safety: No people, pets or plants may be in the room during ozone treatment. The room must be ventilated thoroughly before anyone goes back in. Rubber items, valuable leather and delicate objects should be removed or covered as our team advises.

10 Reasons to Let WHD Remove the Musty Smell from Your Bedroom

1. Deep reach. Ozone treatment gets into wood grain, hinges and wardrobe gaps you cannot wipe.
2. Odor removed at the source. No more covering it up with mothballs or perfume.
3. Fewer airborne spores. Helps reduce allergy symptoms for children and older family members.
4. Flood-contaminated surfaces treated. Disinfection fogging covers floors and lower walls.
5. A proper disinfectant. We use CHEMGENE HLD4H, made for surface disinfection.
6. Clear advice. We help you decide which wardrobes and items are worth keeping.
7. Freshly washed clothes stay fresh. Once the wardrobe and room are clean, clothes stop picking up the smell again.
8. Controlled and safe. Ozone dose matched to the room, with a clear ventilation step.
9. Whole-home option. Treat several rooms at once. Learn more about residential ozone disinfection.
10. Add dust-mite removal. Pair the visit with our dust mite removal service for mattresses and pillows in the same room.

Before and After

What Our Customers Say

"I washed the clothes several times, but as soon as I put them back in the wardrobe they smelled again. The team explained that the source was the wardrobe and the room. They suggested replacing the swollen particle-board wardrobe, then fogged and ozone-treated the bedroom. Now the room does not smell musty anymore and my son sneezes much less. For my favourite leather bag, they advised me to take it out before the treatment and have a leather specialist look after it."

— Muk (name changed), rented house in Lat Krabang

Frequently Asked Questions

Can I wear clothes that had mold after washing them?
Usually yes, if they are washed in warm or hot water as the care label allows and dried completely in the sun. But if black stains and smell remain after several washes, or the fabric has weakened, discard them, especially children's clothes and underwear.

Can clothes stay in the room during ozone treatment?
We assess each case. Generally, we recommend washing clothes first and removing them from the room during treatment, so the ozone can work fully on the wardrobe and room. Valuable leather and delicate fabrics should be taken out.

Can a particle-board wardrobe with a swollen base be saved by ozone?
Ozone helps reduce odor and spores, but swollen, structurally damaged board holds moisture inside, so mold returns easily. We usually recommend replacing it.

How long before we can use the bedroom after ozone treatment?
It depends on the room size and treatment level. Our team will give you the timing, and the room must be properly ventilated before people, pets or plants return.

How do I stop my wardrobe from growing mold again?
Leave a small gap between the wardrobe and the wall, open the doors regularly to let air in, store only completely dry clothes, and avoid packing the wardrobe too tightly.

I rent the house. Should I tell the landlord?
Yes, especially if the wardrobe belongs to the owner. We are happy to provide information to help you both decide.

Storing Clothes Safely Through the Rest of the Rainy Season

Even after professional treatment, a bedroom in a flood-prone area needs a little extra care until the rainy season is fully over. Walls and floors can hold moisture for weeks, and humid nights give mold another chance. These habits help keep your wardrobe fresh.

• Store only bone-dry clothes. Clothes that feel slightly cool or damp to the touch should be left out longer. Folding damp clothes into a wardrobe is the quickest way to restart the problem.
• Do not overfill the wardrobe. Leave space between hangers so air can move. A packed wardrobe traps humidity.
• Raise the wardrobe slightly. If you replace the wardrobe, consider one on legs or place it on a low stand, so a future shallow flood does not soak its base.
• Keep leather goods breathing. Store leather bags and shoes in breathable cloth dust bags rather than plastic, and wipe and condition them every few weeks during humid months.
• Open the wardrobe daily. Even ten minutes with the doors open while you get dressed helps refresh the air inside.
• Air the bedroom. Open windows when the weather allows and run a fan or dehumidifier during long spells of rain.
• Act quickly on early signs. A faint musty smell, a few white spots on a shoe, or a slight stickiness on leather are warnings. Clean the item and check the wardrobe straight away.

If the musty smell returns despite these precautions, it may mean moisture is still trapped in a wall or under the floor. Contact us and we will reassess the room.

A Fresh Bedroom and Clothes That Stay Fresh

The WHD team is ready to advise on ozone treatment and disinfection fogging for homes in Lat Krabang and the surrounding areas.

Book Ozone Treatment – Click Here

See Our Disinfection Service – Click Here

Call 065-556-6294 · LINE @whd268
Email: worldhealthdisinfection@gmail.com

Further Reading

• Ozone disinfection for residential spaces
• Ozone treatment for odors and chemical residue
• Dust mite removal service
• All articles
• External source: World Health Organization – Floods