Last updated: 15 Nov 2026 | 7 Views |
ABC7 reported Oxnard's Ramona Elementary closing days before classes over mould risk from severe water damage, with hundreds of students moved to four campuses and some reporting headaches and nosebleeds. What should Thai schools prepare?
ABC7 reported on 26 August 2026 that Ramona Elementary closed days before classes over mould risk after severe water damage, first reported in November.
Hundreds of students were moved to four other campuses, some reported headaches and nosebleeds, and no return date was set.
Many Thai schools have leaking roofs, soaked ceiling boards and rooms that flood in the rainy season. Left too long, damage and repair costs grow and students may need relocating. Fixing leaks immediately, removing soaked boards, drying and cleaning hard surfaces stop mould before it spreads.

CHEMGENE brand illustration
Highlights: From the same family as HLD4H, recommended by WHD for homes, kindergartens and childcare centres according to its website
Best for: Homes, childcare centres, kindergartens and offices
Why it ranks here: Wipes desks, chairs and shelves after leak repairs
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Highlights: UK disinfectant that meets EN 14476 and is trusted by NHS England according to the product page, available for foggers and as a spray
Best for: Use with ULV foggers in hospitals, clinics, hotels and offices
Why it ranks here: Wipes walls and hard surfaces after drying (check label)
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Highlights: 30 wipes per pack, easy to carry for instant wiping of touch points
Best for: Wiping handles, desks and phones during the day
Why it ranks here: Use after soap handwashing
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Highlights: German Airofog brand, 15-30 micron droplets, 5 L tank, only 3.1 kg for easy handheld use
Best for: Small to medium rooms, clinics, homes, guest rooms and vans
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Highlights: Uses steam above 100°C with no chemicals, ideal for fabrics and crevices sprays cannot reach
Best for: Mattresses, sofas, curtains, hotel beds and bedbug treatment
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Highlights: Longray 2680A-II, 800 W motor, 6 L tank, adjustable 5-50 micron droplets, about 5 kg according to supplier data
Best for: Shops, classrooms, guest rooms and daily fogging
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Highlights: German Airofog brand, 800 W motor, 15-30 micron droplets, 5 L tank, works with water-based disinfectants
Best for: Indoor fogging of medium to large buildings such as offices, schools and hospitals
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Highlights: 4.1 hp engine, 12 L chemical tank, reach up to 12 m, droplets under 30 microns
Best for: Large outdoor areas, warehouses, factories, farms and markets
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Highlights: 50 L tank, mist reach up to 10 m, adjustable output
Best for: Communities, villages, estates and medium farms
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Highlights: 18 hp engine, 75 L tank, mist reach up to 10 m
Best for: Large areas such as municipalities, industrial estates and big farms
See product and price - click here| Rank | Product | Type | Best for |
|---|---|---|---|
| 1 | CHEMGENE HLD4L | Disinfectant for homes and children's areas | Homes, childcare centres, kindergartens and offices |
| 2 | CHEMGENE HLD4H | High-level medical-grade disinfectant | Use with ULV foggers in hospitals, clinics, hotels and offices |
| 3 | WELLGIENIC | Disinfecting wet wipes | Wiping handles, desks and phones during the day |
| 4 | AIROFOG U240 | Lightweight electric ULV fogger | Small to medium rooms, clinics, homes, guest rooms and vans |
| 5 | STEMAR | Disinfecting steam cleaner | Mattresses, sofas, curtains, hotel beds and bedbug treatment |
| 6 | ULV 2680A | Value electric ULV fogger | Shops, classrooms, guest rooms and daily fogging |
| 7 | AIROFOG U260 | Electric ULV fogger | Indoor fogging of medium to large buildings such as offices, schools and hospitals |
| 8 | SOLO PORT 423 | Backpack mist blower | Large outdoor areas, warehouses, factories, farms and markets |
| 9 | AIROFOG UM2 | Truck-mounted fogger, 2 nozzles | Communities, villages, estates and medium farms |
| 10 | AIROFOG UM4 | Truck-mounted fogger, 4 nozzles | Large areas such as municipalities, industrial estates and big farms |
Before: A year-old leak rotted the ceiling and term couldn't start.
After: Immediate repairs, drying and checks before rooms are used.
If buying equipment is not practical or the area is too large, use the World Health Disinfection disinfection service or ozone treatment service. The team wears full protective equipment, chooses products to suit the germ and surface, and reports after the job.
Q: Why handle leaks within 48 hours? A: Mould often starts growing in damp materials within 24 to 48 hours, so fast drying limits damage.
Q: How long before the area can be used? A: After ULV fogging, areas are typically usable about 30 minutes later. For ozone treatment, no people or pets may be inside and the room must be ventilated before use.
Q: Can I get a tax invoice? A: Yes. Tax invoices are issued and 3% withholding tax is supported. Call 065-556-6294 or LINE @whd268.
Follow disease updates from Thailand's Department of Disease Control (hotline 1422) and the World Health Organization. Disinfection reduces germs in the environment and is not medical treatment; anyone with symptoms should see a doctor.
Oxnard shows a neglected leak can displace hundreds of students. Schools that repair fast save money and health.
Keywords: mould, water damage, school, student relocation, ChemgeneHLD4L, germ elimination service