Last updated: 4 Jun 2026 | 40 Views |
When RSV jumped van to van in a chain — and the fix called the AIROFOG U240 ULV fogging machine.
Noi, 45, has run a school van service in Rangsit, Pathum Thani for nine years: six vans, 78 kindergarten and primary children, three schools. The whole business rests on one sentence — “your child is safe with Noi.”
In early November, a four-year-old boy on van 2 developed a cough and fever — diagnosed with RSV (Respiratory Syncytial Virus). Within ten days, six children on the same van fell ill, then the infection jumped to vans 3 and 5, which shared rotating drivers. Seventeen sick children in total; two hospitalised.
The parents’ LINE group erupted. Some asked bluntly: “How do you clean these vans? Why is the whole van sick?” More than 20 parents threatened to switch operators — nearly a third of the business’s income.
A school van is a sealed 8-square-metre box where 13 children sit shoulder to shoulder, twice a day, 40-60 minutes per trip, with the air-conditioner recirculating the same air. One child’s cough circulates the entire ride. RSV survives for hours on hard surfaces — seats, grab rails, seat-belt buckles. RSV outbreaks peak every year in the late rainy season, with small children at the greatest risk of severe illness.
Noi was not careless — alcohol-wiping seats every evening, airing the vans out. But wiping never reaches seat seams, rail grooves, under-seat frames, AC vents or floor carpets, where the real reservoir sits — and alcohol evaporates too fast to treat fabric-embedded germs.
In a school-transport operators’ group, the owner of a 20-van fleet shared his routine: fogging every van after the evening run with the AIROFOG U240 ULV fogging machine from Germany, supplied by World Health Disinfection.
The 15-30 micron mist fills the cabin and penetrates seat seams, rail grooves, AC vents and under-seat spaces no cloth can reach. One van takes 5 minutes; close the doors for 30 minutes, then ventilate. Six vans done within a single hour each evening. The machine weighs 3.1 kg and its flexible trunk nozzle turns into every corner of a cabin.
| Before | After |
|---|---|
| RSV spread across 3 vans, 17 children sick, 2 hospitalised | No chain outbreaks at all the following term |
| 20 parents threatening to leave — a third of revenue at risk | Zero withdrawals, new children joining by word of mouth |
| Alcohol wiping that missed every hidden crevice | 5-minute ULV fog covering every seam and surface |
| No good answer to “how do you clean the van?” | Daily fogging photos in the LINE group — now a selling point |
“Nine years in this business and that was the worst crisis I ever faced. Now every evening after the last drop-off, each driver fogs their own van — five minutes — and posts a photo to the parents’ LINE group. The same parents who nearly left are now recommending us to their neighbours.” — Noi, school van operator, Rangsit
Q: Can children board right after fogging?
A: Fog after the evening run, keep the van closed for the solution’s contact time (30-60 minutes), ventilate before the morning run. Safe for children.
Q: Does the mist damage seats or cabin electronics?
A: ULV mist uses very little liquid and dries fast. Choose non-corrosive solutions per WHD’s advice.
Q: What about dust mites deep in fabric seats?
A: Combine with WHD’s on-site dust mite removal service every 3-6 months for deep extraction.
Q: Does it work for full-size school buses?
A: Yes — the 5-litre tank sprays continuously; a bus takes about 10 minutes.
Protect it with five minutes of fogging per van, every evening.
See AIROFOG U240 Details and Price — Click Here
Call 065-556-6294 | LINE: @whd268
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AIROFOG U240 ULV fogging machine | school van and vehicle disinfection | RSV and flu prevention | World Health Disinfection Tel. 065-556-6294