The Flood Situation in Thung Khru: What the Official Reports Say

Before we talk about bedrooms, we want the facts to be clear, because households in different sois of Thung Khru had very different experiences and we do not want to exaggerate anything.

• Bangkok overall: on 25 to 26 September 2026 Bangkok received extremely heavy rain, with more than 300 mm accumulating in roughly 48 hours. On 26 September all 50 districts were declared disaster areas, according to Thai PBS and Malay Mail.
• Thung Khru and Bang Mot subdistricts: on 29 September 2026 the Department of Disaster Prevention and Mitigation (DDPM) declared both subdistricts of Thung Khru as flood assistance zones, according to Thai PBS.
• High tides: from 29 September to 4 October 2026 the Hydrographic Department warned of high sea tides and asked people to monitor Rama 2 Road and Suksawat Road, according to Thansettakij.
• The latest citywide figure: on 6 October 2026 the DDPM reported that 329,000 households in Bangkok had been affected.

To be honest with you: in the sources we checked, there were no street-by-street water level reports for Thung Khru, and reports suggested the Thonburi side as a whole was hit less severely than eastern Bangkok. What can realistically happen here is heavy rain leaving water standing in the soi, drains backing up, water seeping into ground floors, and several days of very high humidity because high tides slow drainage. Any of these is enough to turn a child's bedroom into a reservoir of mold and musty smells. Figures and conditions change daily, so please check the latest notices from the BMA and DDPM as well.

Why Children's Bedrooms in Thung Khru Are More at Risk Than Other Rooms

Thung Khru sits close to the Gulf, is laced with canals, and is home to housing estates, townhouses, shophouses and student dormitories around the university area in Bang Mot. Many young families live here, close to Rama 2 and Suksawat roads. When heavy rain and a high tide arrive together, the drains empty slowly and indoor humidity lingers far longer than usual.

A child's bedroom has features that let germs survive longer. First, it holds more soft, absorbent items than any other room: plush toys, blankets, bolsters, a cot mattress, a foam play mat with seams, and piles of small clothes. Second, children's rooms are often air-conditioned all night with windows shut to keep mosquitoes out, so air circulation is poor.

The biggest difference, though, is how children behave. Toddlers crawl on the floor, put their hands in their mouths, chew toys and hug a plush animal next to their face all night. Their airways and immune systems are still developing, and they breathe faster than adults relative to their body size. Spores an adult barely notices can become a blocked nose, a lingering cough or a rash in a child. That is why a search like ozone for children's bedrooms in Thung Khru deserves careful thought, not just a hunt for the fastest provider.

Germs, Mold and Odours Left by Waterlogging: What Your Child's Room Is Facing

Water that backs up from drains or stands in the soi after a downpour is not clean water. It carries dirt from roads, sewers and septic tanks. When it seeps indoors, or simply keeps the house humid for days, four groups of problems follow.

1. Bacteria

Floodwater is often contaminated with faecal bacteria such as E. coli and Salmonella, which cause diarrhoea, stomach cramps and vomiting. A child who crawls on a floor that was wet and then sucks a thumb is at greater risk than an adult. There is also leptospirosis, carried in water mixed with animal urine. An adult who wades home and walks into the nursery without washing their feet can carry contamination inside. Anyone with a high fever, calf pain or red eyes after wading should see a doctor straight away.

2. Viruses

The rainy season is when respiratory viruses such as RSV and influenza spread widely among children, while gut viruses such as norovirus and rotavirus pass through contaminated surfaces and hands. A bedroom shared by siblings deserves special attention.

3. Mold and spores

Mold can begin growing within 24 to 48 hours after materials get wet, which is why the WHO and the US CDC both urge families to dry homes quickly. In children's rooms mold typically appears along skirting boards, under mattresses, behind wardrobes, in the seams of play mats and inside plush toys that never fully dried. Airborne spores are an important trigger for allergies and asthma in children.

4. Musty and sewer odours

A musty smell signals that mold or bacteria are breaking down materials. Young children cannot say a room smells strange, but they become fussy, sleep badly or refuse to go into the room, so parents often notice late.

Who in a Thung Khru Home Is Most at Risk, and When to See a Doctor

Take extra care with babies and children under five, children with allergies, asthma or eczema, children recovering from an illness, pregnant women sharing a room with an older child, and grandparents who help with childcare and often sleep in the same room.

See a doctor without waiting if a child breathes fast, wheezes, shows chest in-drawing, drinks or feeds less, has a high fever, is unusually drowsy, has repeated diarrhoea with little urine, or develops a rash that spreads quickly. Adults who waded through water and then develop fever and muscle pain, especially in the calves, should tell the doctor about the wading so leptospirosis can be considered. Ozone treatment manages the room environment. It is not a medical treatment and never replaces seeing a doctor.

The Real Impact on Families in Thung Khru and Bang Mot

A child sleeping in a damp room often starts with a stuffy nose and a cough at night that slowly becomes chronic, and when one child falls ill the adults catch it next. Doctor visits, medicine, a new cot mattress, discarded toys and repainting add up in a month when families are already paying for repairs. Parents working along Rama 2 take leave for hospital trips while some roads are still under high-tide watch. A child who refuses a smelly room moves into the parents' bed, nobody sleeps well, and the hardest part, many parents say, is not knowing whether the room is clean enough when the smell is still there after all the washing.

Why the Usual Fixes Are Not Enough for a Child's Room

Wiping walls and floors with bleach: bleach helps on smooth visible surfaces, but it does not reach the gap behind the wardrobe, furniture joints or the air itself. Used too strong in a closed room, the chlorine smell irritates a child's airways. Never mix it with toilet cleaners or ammonia.

Running fans or air conditioning to dry the room: drying is essential and must be done, but fans can blow mold spores around the room, and an air conditioner running in a damp room pulls moist air across its coil, letting mold settle inside the unit and blow back out every night.

Air fresheners and scented candles: fragrance only masks the smell for a while, does nothing to the source, and some fragrance compounds can trigger allergies in children.

Painting over mold: the most common shortcut after heavy rain. Fresh paint looks good, but if the wall is still damp inside, mold pushes the paint off and black spots return within weeks.

Washing plush toys and drying them indoors: while it is still raining and the tide is high, Thung Khru air is very humid. Toys dried indoors may be dry on the outside while the stuffing stays damp and starts to smell again.

Each of these helps at some stage, but none deals with surfaces, hidden corners and the air of the room all at once. That gap is where ozone treatment helps, after the room has been cleaned and dried.

Ozone for Children's Bedrooms in Thung Khru With WHD: How It Works and Why the Room Must Be Empty

Ozone (O3) is oxygen with one extra atom, which makes it highly reactive. Released in a closed room, it spreads through the whole air volume, into corners, under the bed, behind wardrobes and over furniture surfaces, breaking down the structures of viruses, bacteria and mold and splitting the molecules that cause musty odours. It then reverts to ordinary oxygen (O2), leaving no chemical residue on your child's toys or cot. According to the test results the company has certified, from Thailand's Department of Medical Sciences and Intertek (UK), WHD's ozone system eliminates viruses, bacteria and mold by 99.99%.

That same reactivity is why we always repeat the first rule: during ozone treatment the room must be completely empty, with no children, no adults, no pets and no plants. Ozone at disinfecting concentrations irritates the lungs and airways, especially a child's.

How WHD plans ozone treatment for a child's bedroom

1. Talk and assess by phone or LINE: send photos of the room, where it smells and where walls are damp, and tell us whether water came inside. The team will advise what to do before the appointment.
2. Prepare the room: remove items that must be discarded, clean off mud and water marks, wash bedding and washable plush toys, and open wardrobes and drawers so ozone can reach inside.
3. Move people, pets and plants out: take your child to another floor, a relative's home or outside while the work is done.
4. Release ozone and allow contact time: the room is closed and filled with ozone. A typical cycle takes about 30 minutes per zone, depending on size and condition.
5. Rest and ventilate: windows and doors are opened for the time the technician recommends before anyone re-enters.
6. Check and plan prevention: a parent goes in first, then the child returns, with advice on controlling humidity from now on.

Importantly, ozone comes after mud removal, washing and drying. It does not replace cleaning, it does not replace throwing away a soaked mattress, and it does not replace fixing a leak or a backflowing drain. If the source of moisture remains, mold can return.

Toys, Cots and Plush Animals: What to Keep and What to Throw Away

Cot mattresses, sleeping pads and play mats soaked by dirty water: if drain water or soi water reached the foam inside, throw them away, because foam cannot truly be cleaned. Ozone helps with odours and surface germs, but it is not a reason to keep a contaminated mattress for your child.

Wooden cots and beds: solid wood that has not swelled and has no mold deep in the grain can be washed with soapy water, wiped and left to dry completely, then kept in the room during treatment. Swollen particleboard should be replaced.

Hard plastic toys: wash with soapy water, rinse with clean water and air-dry. For toys that go in the mouth, rinse again with clean water after the ozone treatment and ventilation. Toys with holes that trap water, such as some bath toys, should be thrown out if they were in dirty water.

Plush toys and blankets: wash in hot water according to the label, then dry in strong sun or a dryer until the stuffing is completely dry before bringing them back. Plush toys that sat in sewer water and cannot be washed should go. Ozone treatment of the room handles lingering odour in fabric and air much better once each item is clean and dry.

The air conditioner in the child's room: if it smells musty when switched on, have an AC technician clean the filters and coil first, then ozone the room. Otherwise the unit will blow spores back in every time it runs.

10 Reasons Thung Khru Families Should Consider Ozone for Children's Bedrooms After Heavy Rain

1. It reaches where cloths cannot, under beds, behind wardrobes, inside drawers and ceiling corners, because ozone is a gas that fills the room.
2. It covers bacteria, viruses and mold together, 99.99% according to the company's certified tests. See the ozone service details
3. It tackles musty smells at the source instead of masking them with fragrance that may trigger a child's allergies.
4. No chemical residue on toys or cots, because ozone reverts to oxygen.
5. It is quick, about 30 minutes per zone plus ventilation, so your child does not need to leave home for days.
6. It suits periods of high humidity, such as when Thung Khru is still watching for high tides and intermittent rain.
7. It gives parents confidence that both surfaces and air have been dealt with, not just what is visible.
8. It can extend to the whole house, including the living room where the baby crawls, bathrooms and the nanny's room. Ask about whole-home ozone
9. Clear safety steps: empty room, sealed, rest and ventilate before entry, with every step explained in advance.
10. Easy booking by phone and LINE: WHD is based in Bang Khae, also on the Thonburi side, so scheduling is straightforward. Call 065-556-6294 or LINE @whd268.

Before and After Ozone Treatment of a Child's Bedroom

Example Case: A Two-Year-Old's Bedroom in a Bang Mot Townhouse

A typical scenario. Names and details are illustrative, not a verified customer review.

Nan lives in a two-storey townhouse in a soi near Bang Mot. Her two-year-old son's bedroom is on the ground floor at the back, next to a drainage channel. On a night of heavy rain at the end of September the channel overflowed and water backed up through the drain, entering the room to about the depth of a finger joint.

The next morning Nan swept the water out, wiped the floor with diluted bleach and ran a fan for two days. The room looked dry. About a week later a musty smell became obvious, her son woke with a blocked nose every morning and refused to sleep in his own room. When she lifted the play mat she found dark stains along every seam, and the wall behind the wardrobe had a line of mold spots.

After talking to the WHD team on LINE, the family discarded the play mat and the cot mattress that had been wet, washed the plush toys in hot water and tumble-dried them, washed the plastic toys, had the air conditioner cleaned, scrubbed the mold off the wall, and booked ozone treatment on a day when their son was at his grandmother's house. The whole family went out while the work was done and came back after the ventilation period the technician gave them.

What Nan noticed afterwards was that the musty smell had clearly gone and the air no longer felt heavy. Her son went back to sleeping in his own room. For the blocked nose, she took him to a paediatrician at the same time, and she placed a humidity meter in the room to keep watch.

Recovery Checklist for a Child's Bedroom in Thung Khru, Before and After Ozone

Before treatment day

• Photograph the damage before cleaning, in case you apply for help as a household in an assistance zone
• Wear rubber gloves and a mask while cleaning, and keep children away from items touched by drain water
• Remove mattresses, play mats and other heavily contaminated absorbent items
• Wash floors and lower walls with soapy water, rinse with clean water and wipe dry
• Dry the room as much as possible: open windows when sunny and use a dehumidifier if you have one
• Wash fabrics and plush toys that can be washed and dry them completely
• Have the air conditioner cleaned if it smells, and check any drain or gutter that backs up
• Plan where your child, pets and plants will be during treatment

After treatment

• Wait for the full rest and ventilation period set by the technician, and let an adult go in first
• Rinse toys that go in the mouth with clean water before play
• Open windows several times a day, especially after rain stops
• Watch former mold spots; if they become damp again, there is still a source to repair
• Watch your child's health; if coughing, breathing difficulty or fever continues, see a doctor

Frequently Asked Questions About Ozone for Children's Bedrooms in Thung Khru

Q: Is ozone treatment of a child's bedroom safe?
A: Yes, when the procedure is followed: the room must be empty of children, adults, pets and plants during treatment, and people return only after the rest and ventilation period set by the technician. Ozone at disinfecting levels irritates the lungs, so it must never run while anyone is inside.

Q: Our home in Thung Khru was not deeply flooded. Do we need it?
A: Not every home does. If the room has no smell, no mold and never got wet, normal cleaning and ventilation may be enough. If water backed up inside, walls are damp, a musty smell lingers, or your child has allergies, ozone after cleaning helps a great deal.

Q: Does ozone prevent RSV?
A: Ozone reduces germs in the air and on surfaces of the room at the time of treatment, but it does not prevent person-to-person infection afterwards. Handwashing, separating sick children and seeing a doctor when symptoms appear are still essential.

Q: How long does my child need to be out of the house?
A: A typical cycle is about 30 minutes per zone plus rest and ventilation. Total time depends on room size and number of rooms, and the team will confirm it when booking.

Q: How much does it cost and when can you come?
A: The price depends on the area and condition. Call 065-556-6294 or LINE @whd268 for a quotation and appointment. WHD does not promise same-day arrival but will schedule as soon as possible. Ozone jobs of 15,000 baht or more receive a free medical-grade disinfectant spray.

Q: After ozone, can we keep the mattress that was soaked?
A: No. Foam mattresses and pads soaked in contaminated water should be discarded. Ozone does not make foam that absorbed dirty water clean again.

Book Ozone for Your Child's Bedroom in Thung Khru and Bang Mot With WHD

World Health Disinfection is based in Bang Khae, Bangkok 10160, and serves the whole of Bangkok by appointment. Send us photos of your child's room first and we will tell you what to prepare and walk you through every safety step before treatment day.

See the Ozone Service and Request a Quote

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

Related Links and References

• Residential and building ozone disinfection service
• Ozone cleaning service
• Test certificates
• Contact WHD
• Thai PBS (29 Sep 2026): DDPM flood assistance zones in Bangkok, including Thung Khru and Bang Mot
• Thansettakij: high tide warning, 29 Sep to 4 Oct 2026
• Thai PBS: Bangkok rainfall, 25 to 26 Sep 2026
• Malay Mail (26 Sep 2026): all 50 Bangkok districts declared disaster zones
• Bangkokbiznews: DDPM figures for Bangkok (6 Oct 2026)
• CDC: Floods and cleanup safety
• WHO fact sheets

Note: flood information is cited by the dates given in news and DDPM reports and changes daily.