Food Factory Facing a GMP Audit with Unreachable Disinfection Spots - AIROFOG U240 Covers Every Corner of the Line
Last updated: 4 Jun 2026 | 62 Views |
The Single CAR from a GMP Auditor That Kept the Whole QA Department Awake
A true-to-life story from a ready-meal factory in Samut Sakhon — and the secret weapon before the next audit: the AIROFOG U240 ULV fogging machine.
The Defect Hiding Overhead
Wit, 42, is QA Manager at a ready-meal factory in Samut Sakhon supplying a major convenience-store chain. The annual GMP/HACCP audit is judgment day: a falling score puts next year’s contract in doubt.
At the last audit, the inspector shone a torch up at the pipe racks above the production line and wrote a CAR (Corrective Action Request): dust and damp residue accumulating on overhead structures, posing a contamination risk, with current disinfection procedures unable to reach the area.
Wit’s team cleaned the line daily to standard. But the flagged spots were the unreachable ones — pipe racks, ceiling beams, gaps behind machinery, under conveyors. Hand-wiping never covers them, and food-plant outbreaks of organisms like Listeria around the world tend to start in exactly such places.
What a Food Factory Has at Stake
Commercial: major customers tie contract renewal to audit scores. One bad audit can erase orders worth tens of millions of baht.
Safety and legal: pathogens like Listeria monocytogenes and Salmonella thrive in damp, uncleanable spots. The WHO estimates contaminated food sickens hundreds of millions of people yearly. A single recall can end a brand.
Practical: outsourced big-cleaning costs tens of thousands of baht per round and happens a few times a year — while production runs every day.
What the GMP Consultant Recommended: AIROFOG U240
The consultant hired to close the CAR recommended adding ULV fogging to the weekly sanitation program, using the AIROFOG U240 ULV fogging machine from Germany, supplied by World Health Disinfection.
The principle is direct: 15-30 micron disinfectant mist rises to pipe racks and ceiling beams and drifts into the gaps behind machinery no person can reach, treating surfaces and room air together. The machine handles food-industry disinfectants — water-based, acids and oxidizers. With a 38,000 rpm motor, 0-150 ml/min adjustable flow, flame-retardant nylon body, UV-resistant 5-litre tank and 3.1 kg weight, the sanitation team fogs an 800-square-metre production hall in 30 minutes after the shift ends.
10 Reasons Food Factories Choose the AIROFOG U240
- Closes the dead-zone gaps that trigger CARs — pipe racks, beams, behind machines, under conveyors.
- Slots into the Sanitation Program immediately, with records to show auditors.
- 800 sqm in 30 minutes post-shift — no impact on production.
- Compatible with food-industry chemistries: water-based, acids, oxidizers.
- Cuts outsourced big-cleaning costs to a monthly chemical bill.
- Fast-drying mist, no pooling water — avoids creating Listeria niches.
- 3.1 kg, flame-retardant build — safe in factory conditions.
- One machine for cold rooms, packing rooms and changing rooms.
- German engineering you can cite confidently in quality documentation.
- WHD helps design the fogging program aligned to GMP/HACCP — call 065-556-6294.
Before / After
| Before | After |
|---|---|
| CAR for overhead dead zones; key contract shaken | Next audit passed with zero sanitation findings; fogging program praised |
| Swab tests at dead zones periodically over limit | Same points within limits month after month |
| Hundreds of thousands of baht yearly on outsourced cleaning | In-house weekly fogging; only chemical costs remain |
In Wit’s Words
“On audit day I showed the inspector three months of ULV fogging records plus swab results from the exact spots behind the old CAR. He nodded and called it a best practice he wished other factories would copy. My QA team finally breathed again.” — Wit, QA Manager, ready-meal factory, Samut Sakhon
FAQ
Q: What precautions apply when fogging a food production room?
A: Fog after the shift with raw materials stored or covered, use registered food-grade disinfectants, observe the label re-entry interval, and rinse direct food-contact surfaces per SOP.
Q: Can it be used in cold rooms?
A: Yes — the electric motor operates normally in standard cold-room temperatures.
Q: How do we document it for GMP?
A: Add an Environmental Disinfection step to the Master Sanitation Schedule — frequency, chemical, concentration, operator. WHD provides template documents to start from.
Q: Can the same machine serve the office areas?
A: Yes — and for carpets or fabric chairs with dust mites, add WHD’s on-site dust mite removal service once or twice a year.
Don’t Let the Spots You Can’t See Decide the Factory’s Future
Close every dead zone before the auditor’s torch finds it.
See AIROFOG U240 Details and Price — Click Here
Call 065-556-6294 | LINE: @whd268
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AIROFOG U240 ULV fogging machine | food factory disinfection GMP HACCP | World Health Disinfection Tel. 065-556-6294
