The Thermal Fogging Machine Has Arrived, Now What Do You Check? A Handbook for Government Inspection Committees, From Documents and Condition to Test Runs and After-Sales Service, Using the AIROFOG AT35 as the Example

Many inspection committee members are not technicians, yet they must sign for equipment that protects the public from disease. This guide turns the job into a plain-language checklist you can print and use on delivery day, so you can accept equipment with confidence, care and a paper trail ready for audit.

Executive summary (1-minute read)

• The problem: A mosquito fogger accepted by counting boxes and glancing at paperwork often fails on its first real job, the day a dengue case appears, and then becomes an audit issue.
• The solution: Give the committee a five-part checklist: documents, physical condition and accessories, a real test run, operator training, and after-sales terms.
• Why the AT35 is easy to inspect: The AIROFOG AT35 thermal fogging machine has a 100% stainless steel body, is lightweight, works with water-based and oil-based chemicals, carries certification from Germany and the UK, and every unit passes WHD quality control before delivery, with a demonstration on delivery day.
• What the leader gains: Equipment that works from day one, complete documents, lower audit risk and a trained team.
• Next step: Request a quotation and specifications, book a demonstration and training, then procure under your regulations. Call 065-556-6294 or LINE @whd268.

The signature that kept a committee member awake

(Illustrative scenario) Malee is a finance officer at a subdistrict municipality in central Thailand. She has been appointed to the inspection committee alongside the head of disaster prevention and an administrative officer. The items to accept are two thermal foggers that the public health division requested ahead of the rainy season.

Malee remembers what happened two years earlier. The municipality received mosquito foggers from another vendor. The committee at the time counted the boxes, looked at the delivery note and signed within fifteen minutes because the vendor was in a hurry. Three weeks later the first dengue case of the year was reported. The team took the machines out for the first time: one would not start, and the other leaked chemical at a joint. The manual was entirely in a foreign language, and the phone number provided no longer worked.

When auditors later reviewed the spending, their first question was, "During acceptance, did you run the machines? Is there a record?" The committee could not answer with confidence. This time Malee is determined not to repeat that. She is not a technician, but she wants a checklist that is easy to understand, can be followed one item at a time, and produces a complete record.

This article is that checklist, and one that any mayor, subdistrict chief or chief administrator can hand to every inspection committee.

Why inspecting a mosquito fogger matters more than it seems

1. Public health depends on a machine that works

A thermal fogger is not equipment that sits on a shelf. It is a disease control tool needed on the day someone falls ill with dengue, chikungunya or Zika, all carried by Aedes mosquitoes. Dengue causes several days of high fever, and some patients go into shock as the fever drops. Children, older adults, people with chronic illness and pregnant women need extra protection. If the machine fails that day, spraying within roughly 100 meters of the patient's home does not happen in time.

2. Budget that must deliver value

Equipment accepted but unusable is money spent for nothing, and it usually triggers more spending on repairs or contract spraying, a double burden.

3. The committee's accountability

Signing for acceptance confirms that the goods are correct and complete under the contract or agreement. If they later prove not to match the specification, members may have to explain to auditors. A full record of the inspection protects the committee itself. It also protects the vendor who delivered correctly, because a documented test run settles any later dispute about whether a fault existed on day one or appeared through misuse. In other words, a careful inspection is fair to everyone involved, and it turns a stressful signature into a routine, well-supported decision that any member can explain in plain words.

4. Image and complaints

When residents learn that the agency has just bought a new machine and still cannot spray, trust drops, and such stories spread quickly on social media.

5. Workload for operators

Without training at handover, the spray team learns by trial and error, risking misuse, damage or burns from the hot parts of a thermal fogger.

Common acceptance mistakes

1. Counting boxes only without opening them to check the machine and accessories.
2. No test run because there was no fuel, no space or no time on the vendor's side.
3. Not checking against the specification in the procurement documents item by item.
4. No actual user on hand, so nobody knew what to look for.
5. No Thai manual or warranty document, making claims and repairs harder later.
6. Serial numbers not recorded, so asset registration and warranty tracking are unclear.
7. No photos or test results, leaving no evidence when questions arise.
8. Signing despite defects on a verbal promise to fix them later.

Terms to know before inspection (one line each)

Remember: if the documents call for a thermal fogging machine, you must receive a thermal fogger, not a ULV cold fogger, and vice versa. The two do different jobs.

The five-part acceptance checklist (print and use)

This is general guidance. Use it together with your contract, agreement and the regulations your agency applies. Where the contract says otherwise, the contract prevails.

Part 1: Prepare before delivery day

• ☐ Read the specification, contract or purchase order in full, and keep a copy to tick off item by item.
• ☐ Confirm the delivery date, place and any installation or demonstration terms.
• ☐ Invite the actual user, such as the public health officer or spray team leader, to advise on technical points.
• ☐ Ask the vendor to bring a technician to demonstrate and run the machines.
• ☐ Prepare an open outdoor area for the test, away from flammables, with a fire extinguisher at hand.
• ☐ Agree who supplies fuel and test liquid, or whether plain water is used as the vendor advises.
• ☐ Bring a camera or phone and the acceptance record form.

Part 2: Check documents

• ☐ Delivery note or invoice showing model, quantity and price matching the contract.
• ☐ Warranty document with the agreed period and terms.
• ☐ Operating and maintenance manual, in Thai or with a Thai summary as required.
• ☐ Product quality certificates named in the specification; for the AT35, certification from Germany and the UK.
• ☐ Supplier standards such as ISO and GMP, if required.
• ☐ List of accessories and spare parts included under the contract.
• ☐ After-sales contacts: service center, coordinator name and a phone number that actually works.

Part 3: Check physical condition and accessories

• ☐ Brand and model match the contract; record every serial number.
• ☐ Body material as specified; for the AT35, 100% stainless steel, with no dents, cracks or rust.
• ☐ Welds and joints are solid with no cracks.
• ☐ Fuel and chemical tank caps close tightly with seals in place.
• ☐ Hoses, pipes and valves are new, with no kinks or leaks.
• ☐ Fog tube and heat guard are firmly fitted.
• ☐ Strap or handle is strong and adjustable, and the weight suits carrying on foot.
• ☐ Accessories complete, such as tool kit, spare parts and filling funnel.

Part 4: Run the machine for real

• ☐ The vendor's technician demonstrates preparation, fueling and starting per the manual.
• ☐ The machine starts normally and runs steadily for the agreed test period.
• ☐ With the solution valve open, fog output is steady, not intermittent.
• ☐ Closing the valve and shutting down work as the manual describes.
• ☐ No chemical or fuel leaks during or after the test.
• ☐ No unusual noise, abnormal black smoke or flame at the tube outlet.
• ☐ Test every unit delivered, not just a sample.
• ☐ Photograph or film the test and record results for each unit separately.

Part 5: Operator training and after-sales

• ☐ The vendor trains operators on preparation, spraying, shutdown and cleaning after use.
• ☐ Safety points are covered: the hot fog tube, refilling only when cool, and personal protective equipment.
• ☐ Guidance on choosing water-based or oil-based chemicals and mixing per label.
• ☐ Maintenance intervals and recommended spare parts are explained.
• ☐ Repair channels, agreed response times and parts availability are confirmed.
• ☐ The trainee list is attached to the acceptance record.

What a good acceptance record contains

Auditors rarely ask whether the committee was confident. They ask what the committee saw, did and wrote down. A short, well-organized record answers most questions before they are asked. Whatever form your agency uses, make sure it captures the following:

Keep the record factual and specific. "Unit serial ending 012 started on first attempt and produced steady fog for the agreed test period" is far more useful than "machine works well".

If you find a defect

1. Record it clearly with serial number, symptom and photos.
2. Do not sign for the defective item; notify the vendor in writing through your agency's process.
3. Report to the head of the agency as your regulations require.
4. Schedule a new inspection once the vendor fixes or replaces the unit, and run it again.
5. Avoid verbal promises; every agreement should be documented.

After acceptance, pass the details to the procurement officer to register the asset, attach the asset tag to the machine, and store the warranty and manual where the user team can find them easily.

A machine that is easy to inspect: the AIROFOG AT35

Acceptance runs smoothly when product information is clear and the supplier stands behind it. The AIROFOG AT35 thermal fogging machine has product features a committee can verify directly:

World Health Disinfection Co., Ltd. holds ISO and GMP standards, performs 100% quality control before delivery, provides full after-sales service with technicians and spare parts, and supplies products that meet Thai government equipment standards, so every part of the checklist above can be completed.

For indoor work, an agency may consider a ULV cold fogger such as the MASTER ELECTRIC ULV, which carries CE and ETL marks, applying the same acceptance principles with items adjusted to the machine type.

What the leader gains

• Equipment that works from day one: machines pass a real test run and are ready when a case appears.
• Audit-ready: records, photos, serial numbers and complete documents answer every question.
• Public trust: no "new machine that doesn't work" story in the news.
• Budget well spent: less risk of repairs or duplicate contracting after purchase.
• Protected staff: committee members have evidence they did their duty carefully.
• A ready team: trained operators, fewer mistakes and accidents.

For the public health team (technical box)

• Your role on inspection day: act as technical adviser, helping the committee judge fog quality, ease of carrying and clarity of operating steps.
• Questions for the technician: How does setup differ for water-based and oil-based chemicals? How should the system be cleaned after use? Which spare parts should be stocked before the rains?
• Safe testing: test outdoors, away from flammables, wearing protective equipment, and never touch the hot fog tube.
• Link to your plan: after handover, schedule a practice session before the rainy season and assign a caretaker for each unit.
• Science-based use: fog early morning or late afternoon when Aedes is active, cover roughly 100 meters around patient homes, repeat as your health authority advises, and pair fogging with the 3 Keeps to prevent 3 diseases.
• Logbook: keep a machine history of hours, maintenance and repairs to plan next year's budget.

10 reasons the AT35 makes acceptance easier

1. Clear product information. Key features of the AT35 thermal fogger map straight onto the documents.
2. Stainless steel you can inspect by eye. Dents or damage are easy to spot.
3. Lightweight. Operators can try carrying it on delivery day.
4. Two chemical types. Water-based and oil-based use makes training cover real work.
5. International certification. Certification from Germany and the UK supports the acceptance file.
6. 100% QC before delivery. Fewer surprises on inspection day.
7. Technicians who demonstrate and train. Non-technical members can inspect with confidence.
8. Parts and after-sales service. Repair channels confirmed on day one.
9. ISO and GMP supplier. Government mosquito control equipment from a supplier with quality systems.
10. Many missions. A mosquito sprayer for communities, schools, temples and public areas, supporting vector control and general insect control. See more at the government mosquito and insect control equipment hub.

Before and after using the checklist

Procurement tips that make acceptance easier from the start

Good acceptance starts with the procurement documents. If the specification is clear and verifiable, the committee's job on delivery day becomes much easier. General guidance follows; always follow your agency's regulations.

• Write verifiable specs: state what can be seen or measured on delivery day, such as machine type, body material, water-based and oil-based chemical capability, and certificates to be supplied.
• Require a demonstration and test run in front of the committee.
• Require training with a minimum number of trainees or topics.
• List handover documents: Thai manual, warranty, spare parts list and after-sales contacts.
• Budget in the right category: the machine is capital equipment; chemicals and fuel are consumables that need a recurring budget.
• Get quotations from suppliers with after-sales service to support the reference price under regulations.

Judging value without guessing numbers

Consider (1) the cost when accepted equipment cannot be used, such as repairs, contracted spraying or replacement rental; (2) staff time lost chasing problems; (3) expected service life with proper training and maintenance; and (4) reputational and audit risk. Weighed together, the one to two hours spent on a thorough inspection are well worth it.

Next steps in 3 moves

Example field perspective

"The first time I sat on the committee for a mosquito fogger I was nervous, because I had never handled one. With a checklist split into parts, and the public health officer who actually uses the machine standing next to us, it became much easier. We had the technician start every unit in front of us, filmed it, wrote down the serial numbers, and let the spray team carry it around. It took less than two hours, and I felt at ease signing. When questions came later, we had all the evidence."

(A composite example reflecting common perspectives of local government inspection committee members, not a quote from any specific person.)

Frequently asked questions

We are not technicians. How can we inspect a thermal fogging machine?

Work through the checklist part by part, invite the actual user to advise, and have the vendor's technician demonstrate in front of you. You do not need to repair it; you need to see it work as specified.

Must every unit be test-run?

We recommend testing every unit delivered, as each may differ. Sampling one can miss defects.

Do we need real insecticide for the test?

It depends on the vendor's advice and the contract. Some tests use water or a test liquid per the manual. Agree in advance and test in an open outdoor area.

Should we accept a small dent on the body?

Record and photograph it, then check whether the contract requires new, undamaged goods. If it does not meet the terms, ask the vendor to fix or replace it before signing.

What certificates come with the AT35?

Per product information, the AT35 is certified from Germany and the UK, and the supplier holds ISO and GMP. Ask for the list of handover documents when you request a quotation.

What happens after acceptance?

Register the asset, attach the asset tag, file the warranty and manual, assign a caretaker, and schedule a practice run before the rainy season.

Choose a machine you can fully inspect and truly use

Request a quotation, specifications, the handover document list and a demonstration of the AIROFOG AT35 thermal fogging machine.

See AIROFOG AT35 product and price, click here

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

Browse the government mosquito control equipment hub

World Health Disinfection Co., Ltd., 88 268 Kanlapaphruek Road, Bang Khae, Bangkok 10160

Related links

• Government mosquito and insect control equipment hub
• MASTER ELECTRIC ULV fogger
• GREENFOG F4 vehicle-mounted ULV sprayer
• Department of Disease Control, Ministry of Public Health (Thailand)
• World Health Organization: Dengue and severe dengue fact sheet

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