60-Room Apartment Losing Tenants to Musty Vacant Rooms - AIROFOG U240 Makes Rooms Rent-Ready in 1 Hour
Last updated: 4 Jun 2026 | 64 Views |
The Prospective Tenant Who Looked for 30 Seconds and Said “I’ll Check a Few Other Places First”
A true-to-life story from a 60-room apartment building in Bang Khae — the musty smell that drove tenants away, and the answer: the AIROFOG U240 ULV fogging machine.
Twelve Vacant Rooms, 60,000 Baht of Missing Rent a Month
Uncle Somchai, 58, runs the five-storey, 60-room apartment building his father built in Bang Khae. Rooms rent for 4,500-5,500 baht. In the last two years a new competitor opened nearby, old tenants drifted away, and vacancies stacked up to 12 rooms — over 60,000 baht of lost rent every month.
The vicious cycle: the longer a room sits empty, the mustier it gets; the mustier it gets, the harder it rents. Rooms sealed for three or four months accumulate humidity until the smell embeds itself. In some, mould blooms on walls and ceilings. Prospective tenants open the door, take one breath, and leave within the minute — “I’ll check a few other places first.” They never come back.
He tried leaving windows open all day, air freshener, repainting over mould patches. The smell faded briefly and returned — because the source, mould and bacteria in the air, walls and furniture, was never actually treated.
A Musty Smell Is an Invoice No Tenant Will Ever Pay
Tenant-behaviour research says the same thing everywhere: the rental decision forms in the first minutes of a viewing, and smell works faster than price or location. A musty room instantly signals “damp, old, neglected.”
Beyond smell, mould is a health issue: airborne spores are potent allergens and asthma triggers. Tenants who move into mould-affected rooms often develop chronic allergies without knowing why — and move out early, restarting the vacancy cycle.
Advice from a Son Who Works in Hotels: AIROFOG U240
Somchai’s son works in housekeeping at a five-star hotel and recommended the machine his department uses daily to prepare rooms: the AIROFOG U240 ULV fogging machine from Germany, supplied by World Health Disinfection.
The routine is simple: fog an antimicrobial solution through the room — wardrobe corners, under beds, AC vents — 5 minutes per room; switch to a deodorising solution and fog again; close for 45 minutes, ventilate. A stale room becomes clean-smelling and viewing-ready. The 15-30 micron mist reaches ceilings, walls and the hidden corners where mould hides. At 3.1 kg, a 58-year-old can carry it up and down stairs comfortably.
10 Reasons Landlords Choose the AIROFOG U240
- A musty room becomes showable in 1 hour — fog in the morning, view in the afternoon.
- Treats the source, not the symptom — kills the mould and bacteria behind the smell.
- Mist reaches ceilings, walls, wardrobe corners, AC vents — mould’s favourite hiding spots.
- 5 minutes per room — twelve vacant rooms in one morning.
- 3.1 kg — a retiree can operate it alone.
- Two modes in one — disinfect (water-based) and deodorise (oil-based).
- Use at every tenant turnover — market rooms as “disinfected before move-in.”
- Less repainting over recurring mould because the cause is controlled.
- Electric, plug-and-go, no smoke — safe in closed rooms.
- Fast payback: renting out just one extra room covers the machine many times over. Call 065-556-6294.
Before / After
| Before | After |
|---|---|
| 12 vacant rooms, 60,000+ baht of rent lost monthly | Only 3 vacancies four months later |
| Viewings ending in 30 seconds because of the smell | Clean-smelling rooms; viewing-to-booking rate clearly up |
| Repainting over mould patches every year | Mould controlled at the source; walls stay clean longer |
In Uncle Somchai’s Words
“I used to be embarrassed showing rooms — opening the door apologising that I’d clean it up later. Now I fog in the morning and show in the afternoon. The rooms smell new. My son was right: if hotels use it every day, it must work.” — Uncle Somchai, apartment owner, Bang Khae
FAQ
Q: Is fogging alone enough for large mould patches?
A: Wipe heavy growth off first, then fog an anti-mould solution to kill remaining spores and prevent regrowth. Regular fogging stops it spreading again.
Q: Can occupied rooms be treated?
A: Yes — tenant steps out, fog, observe the contact time, ventilate. Best done at every tenant turnover.
Q: What about dust mites in old mattresses?
A: Pair with WHD’s on-site dust mite removal service before each new tenant — a selling point few rentals offer.
Q: Can it remove a previous tenant’s cigarette smell?
A: Yes — fog deodoriser into curtains and furniture; embedded smoke fades within a few sessions.
Every Vacant Room Is Rent Disappearing Every Month
Turn a musty room into a rent-ready room — in one hour.
See AIROFOG U240 Details and Price — Click Here
Call 065-556-6294 | LINE: @whd268
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AIROFOG U240 ULV fogging machine | apartment and rental room disinfection and odour removal | World Health Disinfection Tel. 065-556-6294
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