The 2026 (B.E. 2569) Don Mueang Flood: What Was Reported

According to MGR Online on 26 September 2026, continuous rain left inbound Vibhavadi Rangsit Road, from the Royal Thai Air Force area at Don Mueang past Don Mueang Airport to the Lak Si intersection, under about 40 centimetres of water along the whole stretch. Police opened a special lane at the Chaeng Watthana toll gate to keep traffic moving. Naewna reported that at 18:30 on 25 September 2026, the Bangkok Metropolitan Administration (BMA) listed Soi Chang Akat Uthit 15 as a flooding point, and Thai PBS reported 71.0 millimetres of rain in Don Mueang district over 26 to 27 September 2026.

Across Bangkok, Thai PBS reported more than 300 millimetres of rain in about 48 hours over 25 to 26 September 2026, and all 50 districts were declared disaster areas on 26 September. DDPM reported on 6 October 2026 that about 329,000 Bangkok households were affected.

Nationally, DDPM reported, as of 06:00 on 7 October 2026, that 27 provinces plus Bangkok were affected, covering 123 districts, 984 subdistricts and 1,154,875 households, with more than 3.1 million people affected. These figures reflect the dates of the reports and change daily, so follow announcements from the Don Mueang District Office and the BMA.

Don Mueang is a dense area of townhouses, dormitories and homes of airport workers. When the street stays flooded for days, families gather in one closed room, which is exactly where respiratory germs pass easily from person to person.

A Typical Scenario: The Living Room That Became Everyone's Bedroom

Example case written to illustrate a common post-flood situation. It is not an interview with any Don Mueang resident.

Nok lives in a two-storey townhouse off a Don Mueang soi with her husband, her primary-school daughter and her grandmother, who is in her seventies. When heavy rain flooded the end of the soi, water seeped into the ground-floor living room and the grandmother's bedroom. The family carried mattresses, pillows and blankets upstairs and all slept in the one big bedroom, windows firmly shut because of blowing rain and mosquitoes.

Nok's husband waded to work every day and came home soaked, tired and short of sleep. A few days later he developed a high fever that came on quickly, aching muscles, a headache and a dry cough. He assumed it was a cold from the rain and kept sleeping in the same room. Two days later their daughter had a fever, and the grandmother began coughing, feeling weak and losing her appetite.

At the clinic, the doctor diagnosed influenza and advised close monitoring for the grandmother, who belongs to a high-risk group. The family was told to separate the sick, wear masks, wash hands often and let fresh air in. After everyone recovered, Nok still noticed a musty, damp smell in the downstairs living room where water had seeped in. The curtains and fabric sofa smelled stale, and the upstairs bedroom that had served as a sickroom for days had the heavy, airless smell of a room whose windows were never opened.

The right order is to clean the flooded rooms, wipe high-touch surfaces, wash all bedding and curtains, dry everything completely, and only then consider ozone in the empty bedroom and living room to help reduce airborne germs and lingering odour.

What Is Influenza?

Influenza is a respiratory infection caused by influenza viruses, found worldwide. In people, influenza A and B are the most common. The virus keeps changing, which is why people can catch flu many times in their lives and why the World Health Organization recommends yearly flu vaccination for high-risk groups.

In Thailand, flu tends to rise during the rainy season, which overlaps with flooding in many areas.

How does influenza spread?

• Droplets from coughing, sneezing or close conversation are the main route. Droplets carrying the virus reach the nose, mouth or eyes of people nearby.
• Smaller particles that linger in the air, especially in closed, poorly ventilated rooms shared by several people.
• Hands that touch contaminated surfaces such as door handles, TV remotes, light switches, phones and pillows, then touch the nose, mouth or eyes. Flu viruses can survive on hard surfaces for a period, so high-touch spots should be wiped regularly.
• Shared items such as cups, spoons, handkerchiefs, towels and pillows.

People are contagious from shortly before symptoms start, most of all in the first few days, which is why one household member after another falls ill.

How is flu different from a common cold?

A cold usually starts with a runny or blocked nose, sneezing and a mild sore throat, with little or no fever, and people can often keep working. Flu tends to start suddenly with high fever, chills, aching muscles all over, headache, marked exhaustion, dry cough and sore throat. Some people, especially children, also have nausea, vomiting or diarrhoea. Many respiratory infections look alike, though, so a doctor is needed to tell them apart, sometimes with a test.

Why Don Mueang Homes Need Extra Care with Flu After the Flood

Floodwater does not create influenza; the virus spreads mainly from person to person. But post-flood conditions make it easier to spread and harder for the body to cope.

• Crowding in one room. When the ground floor is wet, families move upstairs and sleep together with almost no distance between people.
• Windows and doors shut for days against rain and mosquitoes, so air does not change and infectious particles linger.
• Exhaustion. Wading to work, hauling belongings, short sleep, stress and irregular meals all make people more vulnerable.
• Staying wet and cold. Getting rained on does not itself cause infection, but being soaked and chilled for hours leaves people feeling unwell and resting less.
• Damp homes. Rooms where water seeped in stay damp for days. The WHO links damp, mouldy homes to respiratory symptoms such as cough, wheeze and allergy flare-ups. Combined with flu, people with asthma or allergies can feel considerably worse.
• Hard travel. Flooded stretches of Vibhavadi Rangsit Road slow trips to the doctor, so some families wait too long.

Influenza Symptoms and Who Is Most at Risk

The symptoms people search for most when they suspect flu after a flood include:

• Fever that rises quickly, with chills and sweating
• Aching muscles all over, backache, leg pain
• Headache and heavy fatigue, not wanting to get out of bed
• Dry cough, sore throat, blocked or runny nose
• In some children, nausea, vomiting or loose stools

Most people improve within about a week, but some develop complications such as pneumonia.

Groups needing extra care

• Adults aged 65 and over
• Young children, especially under five
• Pregnant women
• People with heart disease, chronic lung disease, asthma, diabetes, kidney disease or weakened immunity
• People with severe obesity

When to see a doctor quickly

Seek care promptly for difficult breathing, chest pain, confusion, a high fever lasting several days, inability to drink, or symptoms that improve and then worsen. In young children, watch for laboured breathing, unusual sleepiness or refusing milk. High-risk people should see a doctor as soon as symptoms start.

If you waded through floodwater and then develop high fever with severe calf pain, tell the doctor, because early leptospirosis can resemble flu. This article is general information, not treatment advice. Do not buy and take medicines without consulting a doctor or pharmacist.

Hotspots in Bedrooms and Living Rooms After the 2026 Don Mueang Flood

Flu spreads mainly person to person, but a home that has hosted a sick person for days has spots worth special attention. If that room also took in floodwater, dampness and musty odour add another layer.

• Pillows, sheets and blankets used during fever. Wash with detergent and sun-dry fully.
• Mattresses and fabric sofas absorb sweat and moisture; if they sat in floodwater, consider discarding them.
• Remotes, phones, door handles, light switches and headboards, the most touched surfaces.
• Curtains, rugs, air-conditioner filters and fans, which trap dust and blow mustiness around.
• Ground-floor walls and floors where water seeped in, with tide marks, mould and drain smells.

The Impact on Don Mueang Families

When one person falls ill, those sharing the room often follow, and older relatives and young children may be hit harder. Missed work and school, trips to hospital on flooded roads and laundering costs pile on top of flood repairs. And a bedroom that still smells like a sickroom makes it hard for a family, or a new tenant, to settle back in.

Why Wiping, Fans or Air Freshener Are Not Enough

• Wiping reaches only visible surfaces. It is essential, but a cloth cannot reach the air, gaps behind wardrobes, under the bed or curtains holding particles.
• A fan in a closed room is not ventilation. It just recirculates the same damp air; outside air has to replace it.
• Fragrance only masks. The source remains, and strong scent can irritate airways that are still coughing.
• Closing a room while still damp. Mould can appear within days. The CDC advises cleaning and drying within 24 to 48 hours.
• Washing without proper drying. Bedding dried indoors in the rain stays damp and carries mustiness back to bed.
• Disinfecting before removing grime. Disinfectants work poorly on mud and dried secretions, so wash with water and detergent first.

Bedroom Ozone After the 2026 Don Mueang Flood with WHD: How It Helps

World Health Disinfection's residential ozone disinfection service releases ozone gas (O3) from a generator into a closed, empty room. Ozone is a strong oxidiser that reacts with the structures of micro-organisms and with odour molecules, then breaks down back into oxygen (O2), leaving no chemical film on surfaces. As a gas, it spreads through the air, into corners, under beds and behind wardrobes that wiping cannot reach.

According to the company's certification, based on testing by Thailand's Department of Medical Sciences and Intertek (UK), the service eliminates virus, bacteria and mould groups at 99.99%. The service page does not list a test specific to influenza viruses, so we describe flu as belonging to the virus group the service targets. Readers who want the detailed test data can request it from WHD via the certificates page, by phone or on LINE.

Ozone is not flu treatment or a vaccine, and it does not protect anyone from a person who is still sick at home. The main protections remain vaccination as advised by a doctor, separating the sick, masks, handwashing and fresh air. Ozone is a supporting step after recovery and cleaning, to help reduce germs in the air and on hard-to-reach surfaces and to cut musty odour.

WHD's post-flood bedroom ozone process

1. Survey and assessment. The team asks about room sizes, number of rooms, how high the water came, where odour lingers and who was ill, by phone, on LINE or on site, to plan zones and cycles.
2. Clean and dry first. The owner or a cleaning crew removes mud, wipes high-touch surfaces, washes bedding and curtains, discards soaked absorbent items such as foam mattresses, rugs or swollen mouldy gypsum, and dries the rooms completely.
3. Empty and seal the room. All people, pets and plants leave. Doors and windows are closed and the air conditioner or fan is switched off as the technician advises.
4. Ozone cycle. Typically about 30 minutes per zone, depending on room size and condition, with the team controlling the equipment throughout.
5. Rest and ventilate. After the cycle, the ozone is left to break down, then doors and windows are opened for the time the technician sets.
6. Re-entry. Return only when the technician confirms it is safe, then keep ventilating regularly.

Is ozone dangerous? Safety rules

• High-concentration ozone irritates the eyes, nose, throat and lungs. No people, pets or plants may stay in the room during treatment.
• The room must be clean and dry first. Ozone does not replace scrubbing, removing flood-soaked materials or fixing leaks.
• Ozone does not penetrate deep into mattresses, sofas or waterlogged walls. Soaked, mouldy materials should be removed.
• Anyone who is ill must see a doctor. Ozone deals with the home environment; it does not treat disease.

10 Reasons Don Mueang Homes Should Consider Bedroom and Living Room Ozone After the 2026 Flood

1. Reaches the whole room's air. As a gas, ozone spreads into air and corners a cloth cannot reach.
2. Helps cut damp odour. Earthy, drain-like and musty smells from damp curtains or rugs are the top reason people search for ozone odour removal.
3. Suits rooms used as sickrooms. After recovery and cleaning, it helps a room return to normal use.
4. Targets virus, bacteria and mould groups, per the company's certification citing 99.99%.
5. No chemical residue. Ozone reverts to oxygen, so there is nothing to wipe off pillows or toys.
6. Supports homes with older adults and young children, who are more sensitive to respiratory illness and mould, as long as everyone is out during treatment.
7. Short treatment time. About 30 minutes per zone plus rest and ventilation; families do not need to move out for days.
8. Follows cleaning and drying seamlessly as a systematic final step.
9. Useful for dormitories and rentals near the airport preparing rooms for new tenants after the flood.
10. Free consultation first. Plan with WHD on 065-556-6294 or LINE @whd268, or read more on the ozone service page.

Example Case: A Dormitory Near the Airport Where Tenants Fell Ill One After Another

Example case written to illustrate a common situation. It is not a review by any customer.

Ton manages a three-storey dormitory in Don Mueang. Most tenants work shifts at the airport and logistics firms. While the street outside was flooded, water seeped into two ground-floor rooms and the corridor. Tenants waded home every day, and during the same period several of them came down with fever, cough and aching bodies; doctors diagnosed some with influenza.

Ton asked sick tenants to rest in their rooms and wear masks in shared areas, and had rails, lift buttons and door handles wiped several times a day. After the water fell, a crew washed the ground-floor rooms, removed soaked rugs, dried the rooms with fans and cleaned curtains and filters.

The dry rooms still smelled musty, so Ton booked ozone for the empty rooms and corridor, one sealed zone at a time, with tenants informed in advance and ventilation before re-entry. Ozone came last, after caring for the sick, cleaning and drying.

Checklist: Flu Prevention and Bedroom Recovery After the 2026 Don Mueang Flood

While someone is sick

• Take high-risk family members to a doctor as soon as symptoms start
• Let the sick rest in a separate room if possible, masked around others
• Wash hands with soap often, especially after coughing, sneezing or caregiving
• Do not share cups, spoons or towels
• Open windows for fresh air whenever it is not raining

After the water recedes and everyone recovers

• Photograph damage before cleaning
• Wear rubber gloves, boots and a mask when cleaning flooded rooms
• Wash mud and water marks off floors and walls with clean water and detergent
• Wipe handles, switches, remotes and headboards
• Wash sheets, pillowcases, blankets and curtains and dry fully
• Discard soaked mattresses, fabric sofas or rugs that smell musty or show mould
• Clean air-conditioner filters and fans
• Open windows and use fans until rooms are completely dry

Ozone day and after

• Everyone, pets and plants out of the room
• Close doors and windows as the technician advises
• Wait for the full rest and ventilation time before returning
• Keep ventilating and watch for damp patches or returning mould
• Ask a doctor about flu vaccination for older adults, young children and people with chronic conditions

FAQ: Influenza After Floods and Ozone in Don Mueang

What are flu symptoms, and how are they different from a cold?

Flu starts suddenly with high fever, body aches, fatigue and dry cough; a cold is mostly runny nose with mild fever. A doctor should assess.

How does influenza spread?

Through droplets from coughs, sneezes and close talk, small particles in closed rooms, and hands that touch contaminated surfaces and then the nose, mouth or eyes.

Is flu after a flood dangerous?

Most people recover in about a week, but older adults, young children, pregnant women and people with chronic illness can develop complications such as pneumonia. See a doctor early, and urgently if breathing becomes difficult.

How can I prevent influenza?

Get a flu vaccine as advised by a doctor, wash hands often, wear a mask when sick or in crowds, separate the sick, avoid sharing items and keep rooms ventilated.

Does ozone eliminate the flu virus?

According to the company's certification, the ozone service eliminates virus, bacteria and mould groups at 99.99%, but the service page does not list a flu-specific test. You can request the test data from WHD. Ozone is not treatment and does not replace vaccination.

Is ozone dangerous? Can I stay in the room?

No. High-concentration ozone irritates the airways. The room must be empty of people, pets and plants and ventilated for the time the technician sets before re-entry.

How do I get rid of a musty bedroom smell after a flood?

Discard soaked items, wash surfaces and fabrics, clean filters and dry the room. If odour remains, ozone in the empty room can help.

When should I book ozone? Can it be done while someone is still sick?

Book it after the patient has recovered, after cleaning and drying, and at a time when the room is empty. Nobody, including the patient, should stay in the room during treatment.

How much does ozone treatment cost?

It depends on area, number of rooms and post-flood condition. WHD quotes per job after hearing the details. Call 065-556-6294 or LINE @whd268.

Is there ozone service near me in Don Mueang?

WHD is based in Bang Khae, Bangkok 10160, and serves Bangkok including Don Mueang. Visit dates are confirmed by phone or LINE according to the schedule and post-flood traffic.

Talk to WHD About Bedroom Ozone After the 2026 Don Mueang Flood

Tell us which rooms the water reached, where the smell lingers, and whether older adults or young children live with you. The WHD team will help plan a safe recovery order and ozone schedule.

See the Ozone Service and Request a Quote

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

World Health Disinfection, Bang Khae, Bangkok 10160. Serving all of Bangkok; for other provinces, please ask by phone or LINE.

Related Links and References

• Residential ozone disinfection service
• Ozone cleaning service
• WHD certificates
• MGR Online: Vibhavadi inbound flooding, Don Mueang, 26 Sep 2026
• Naewna: BMA flooding points, 25 Sep 2026
• Thai PBS: district rainfall, 26 to 27 Sep 2026
• Government PR Department: DDPM report as of 7 Oct 2026
• WHO fact sheets (Influenza)
• CDC: Floods and your health
• Department of Disease Control, Thailand

This article is general information, not medical diagnosis or treatment. See a doctor if you feel unwell. Flood details reflect the dates of news and DDPM reports and change daily.