He Does Four Home Dialysis Exchanges a Day in a Room Sealed Shut for Three Years — The Family Story That Ended With a Full-Room Dust Mite Removal Service

At 6:30 on the morning of Tuesday 8 April 2025, in a two-storey wooden house on an old road in Laplae District, Uttaradit Province, Manop Chanruangsri, aged 54, a former agricultural water-pump repairman who ran his own workshop for 22 years, sat on the edge of the bed in the downstairs bedroom, cleaned his hands with alcohol, put on a surgical mask, and prepared the first bag of dialysis fluid of the day.

He had done this 1,842 times. Ever since he started continuous ambulatory peritoneal dialysis — CAPD, as his medical team calls it — in November 2023, he has performed four exchanges a day, roughly 35 minutes each, at exactly 06:30, 11:30, 17:00 and 22:00, seven days a week, without a single day off.

But that morning he could not do anything for several minutes. He sneezed nine times in a row without stopping, his eyes streaming. When the sneezing finally ended, he scratched both inner forearms and his left flank, where a patch of red rash had appeared in mid-February and never really gone away.

His only daughter, Pimchanok Chanruangsri, 26, stood in the doorway holding the supply box. She has been her father's primary caregiver from day one, and she is the one who cut her full-time job down to half hours so she could be at home.

"Dad, I really think it's the fluid," she said, in a voice that betrayed her own uncertainty. "You've been like this ever since we switched to the new batch." The family believed that for almost four solid months. They changed fluid batches three separate times.

What nobody in that house questioned even once was the bedroom itself: a room 3.2 by 4 metres in which Manop spends 12 to 14 hours a day. A room kept shut with the air conditioner running almost constantly, "to keep the dust from the road out." A room containing a nine-year-old mattress, a fabric-upholstered armchair in which he has sat for every single exchange for three full years, and two blackout curtains that have hung on a high rail since the family moved in seven years ago and have never once been taken down and washed.

And what made this heavier than an ordinary itch was this: every time Orawan Pongpradit, the renal unit's home-visit coordinating nurse from the provincial hospital, came round every six weeks, she would say the same sentence. "Uncle, the area where you do your exchanges has to be the cleanest place in this house. The dust floating in the air when you open the bag is exactly what we need to reduce as much as we possibly can."

Everyone nodded every time. Nobody realised that the "dust" she meant was mostly not blowing in from the road outside. It was lying in wait inside the fibres of the mattress and the chair he sat in every single day.

What Was Actually Happening in That Home Dialysis Room

The turning point came on Friday 23 May 2025. During her scheduled home visit, Nurse Orawan did not simply check the exit site around the abdominal catheter as usual. She stood quietly in the middle of the room for a while, then asked to open the curtains.

Late-morning sunlight came through the half-opened panel in a single hard beam. And in that beam, everyone in the room saw the same thing: an enormous quantity of fine dust particles turning and drifting through the whole room, densest of all directly above the armchair and over the foot of the bed.

"There it is," Orawan said simply. "What I have been telling you for three years. That is not dust from outside. That is coming from inside this room."

Five Questions That Changed What the Whole Family Believed

One: when are the symptoms worst? The answer was: first thing in the morning, the instant he gets up off the mattress, and again when he sits down in the armchair and shifts around to find a comfortable position before starting an exchange.

Two: what happens on days spent away from home? On the day he sat waiting at the hospital outpatient department from morning until evening, he barely sneezed at all — while using the very same batch of dialysis fluid.

Three: exactly where is the rash? Both inner forearms, which rest on the fabric armrests the whole time he waits for the fluid to run, and the left flank, the side he habitually lies on because the catheter sits on the right.

Four: when were the mattress and the chair last deep-cleaned? Pimchanok answered honestly: sheets washed weekly, but the mattress itself and the chair itself, never.

Five: when was the window in this room last opened? Nobody could remember. From the day home dialysis began, the family had agreed to keep the room as tightly sealed as possible to keep germs out, and to run the air conditioner instead. That last one turned out to be the well-meant decision that hurt him most.

The Test That Confirmed What Everyone Had Overlooked

On 6 June 2025, on the renal team's advice, Manop saw Dr Nichakan Worawitsakul, an allergy specialist at a clinic in central Uttaradit. The skin prick test result was unmistakable. The wheal at the house dust mite extract site measured 12 millimetres, while the other sites barely reacted at all.

The doctor explained that he has been strongly allergic to dust mites since he was a young man, but that for 30 years he had worked in an open-sided repair shop with air moving through it all day, so he had almost never shown clear symptoms.

"What changed is not your body," she concluded. "It's the number of hours you spend in one closed room with a high concentration of allergens. You used to be outdoors ten hours a day. Now you're in the same room thirteen hours a day. Those are two completely different situations."

When Pimchanok asked the question she was most afraid of — whether this had anything to do with the infection risk her renal team kept warning about — the doctor answered carefully. Allergy and infection are two separate matters, she said, and the aseptic technique the renal team taught must still be followed exactly as before, every single step, every single time.

But she added a sentence that left the whole house silent for a long moment: a room with dust permanently suspended in the air is not a good room in which to open bags and connect lines. Reducing the dust and allergen load in the room is not a question of appearance. It is one part of making that space as clean as what happens in it four times a day deserves.

Why a Home Dialysis Room Is the Environment Dust Mites Love Most

Manop's bedroom was not dirty to look at. The floor was mopped daily, sheets washed weekly, alcohol gel, a separate infectious-waste bin and a stainless steel supply table all in place, exactly as the renal team had taught. But visible cleanliness and the quantity of allergen buried in fabric fibres are two entirely different things.

One: an abnormally high number of contact hours

The mattress of an ordinary working adult absorbs body weight and moisture for around seven hours a day. Manop's absorbs nine to ten, because he sleeps eight hours at night and habitually naps for one to two hours after the midday exchange. The upholstered armchair carries an even heavier load, because he sits in it for 35 minutes per exchange, four times a day — two hours and twenty minutes — and then spends another two to three hours a day in the same chair watching television and taking phone calls.

Two: a food supply that never runs out

The primary food source for dust mites is the skin cells a human body sheds naturally, roughly 1 to 1.5 grams a day. When one person spends thirteen or more hours a day on the same two fabric surfaces, almost everything shed each day falls into and accumulates in the fibres of those two spots. Over three years, that is roughly 1.1 to 1.5 kilograms.

Three: moisture that cannot escape, and permanent darkness

Manop sweats across his back and the nape of his neck routinely, even in air conditioning, so he keeps the room at 25 degrees Celsius day and night. Air conditioning genuinely cools the air in the room, but it does not dry the interior of a mattress or a seat cushion. Moisture soaks in daily and has no way to evaporate, because the room has no airflow and no sunlight. That damp state became the permanent condition of both fabrics. On top of that, the two blackout curtains stayed shut nearly 24 hours a day. Dust mites avoid light, so a permanently dark room is ideal for them.

Four: the air conditioner acting as a conveyor belt

This is the most important point in this case. The air conditioner vent in the room blows diagonally across the head of the bed and lands directly over the armchair. Every time he gets off the mattress, sits down on the cushion or shakes out the blanket, the lightest particles lift into the air and are then circulated around the sealed room by the air conditioner for another few dozen minutes. And the moment they are most airborne is the same moment he is about to open a fluid bag and connect a line.

That is precisely why Nurse Orawan raised the subject of dust in the exchange area at every visit. But the warning was never translated into action, because the whole household assumed "dust" meant dust from the road, not dust manufactured inside the room itself.

Consequences That Reached Far Beyond Sneezing: Health, Money, and a Daughter's Guilt

On the surface, Manop's symptoms were sneezing, a blocked nose and an itchy rash — things that sound bearable. But when this family sat down and totalled up five months of numbers, the picture stopped looking small.

1) Money spent that fixed nothing at all

Pimchanok keeps every receipt in a steel box. She added up only the items connected purely to the sneezing and the rash, over the five months from February to June 2025.

• Oral antihistamines, averaging 640 baht a month = 3,200 baht
• Three bottles of nasal spray at 590 baht each = 1,770 baht
• Topical treatments and skin creams for the arms and flank = 2,480 baht
• Two after-hours dermatology consultations = 2,400 baht
• Skin prick allergy testing = 3,100 baht
• Six extra round trips plus one air purifier = 6,630 baht

The total came to 19,580 baht in five months. For a family whose income had already halved, that is a very large sum. And what hurt more was that every baht of it went into suppressing symptoms rather than removing the cause, which meant it would never end.

2) The household income that quietly disappeared

Before Manop started dialysis, the pump repair shop netted around 24,000 baht a month. It now brings in about 8,000. Pimchanok cut her hours in half, dropping her own income from 15,000 to 7,500 baht a month. Together the household lost roughly 23,500 baht a month compared with before he fell ill.

3) What Manop feared most: being sent back to hospital haemodialysis

What kept him awake at night was not the itching. It was the fear that if home dialysis ran into trouble, he might have to switch to haemodialysis at the hospital three times a week.

His house is 31 kilometres from the hospital with the renal unit — 62 kilometres round trip, three times a week, roughly 800 kilometres a month. Fuel and upkeep on the old pickup alone would run to at least 3,500 baht a month. More importantly, Pimchanok would have to drive him every single time, which would mean she could not hold a job at all.

"It isn't the needles I'm afraid of," Manop said flatly. "I'm afraid my daughter will have to give up her own life to drive me to hospital three days a week for the rest of mine."

4) A caregiver's guilt, and sleep falling apart

The part nobody discussed was what was happening inside Pimchanok. She prepares the equipment, warms the fluid bags, records intake and output, sets four alarms a day, and she was the one who decided the room should be sealed as tightly as possible. As her father got steadily worse, she concluded on her own that she must have made a mistake somewhere in the procedure the nurse had taught her.

"I cried myself to sleep a lot of nights," she said. "I thought I hadn't washed my hands well enough. I watched the training videos over and over, every night."

By May 2025, Manop was waking an average of three times a night from nasal congestion and itching. Broken sleep like that matters directly for a man who has to get up and perform a clinical procedure at 06:30 every single morning, because an exchange demands concentration and precision at every step.

The World Health Organization notes that household air pollution is a health factor that is significantly underestimated in many settings (see the WHO fact sheet on household air pollution and health). In a home where a chronically ill person spends all day in one room, the air quality of that room is not a side issue.

Why Everything This Family Tried for Five Months Failed

The most unfair accusation would be to say this family did not care. In truth they did more than most households do. But every method they used addressed the outer shell, while the problem sat deep in the fibre layers.

Washing the bedding weekly — excellent, but it never reaches the source

Pimchanok washes sheets, pillowcases and blankets in hot water every week and dries them in full sun. This should continue. But a bed sheet is a thin layer draped over the real reservoir. The dust mite population and most of their droppings sit deep inside the mattress core, inside the pillow filling, and inside the foam beneath the chair's upholstery — none of which can be put in a washing machine.

Wiping floors and tables with disinfectant daily — a different target

This household wipes the floor, the supply table and the door handles with a disinfectant every day, exactly as the renal team instructed. But wiping smooth surfaces does not remove the mite droppings and body fragments embedded in fabric fibres.

A household vacuum cleaner — a real risk of making things worse

Pimchanok tried running the household vacuum over the mattress and the chair two or three times, and every time her father sneezed harder that night, until she stopped doing it. The reason was not that she did it wrong. Ordinary vacuums lack the suction to pull particles clinging deep inside fibres, and their filtration typically releases the very finest particles — the ones that provoke the strongest allergic response — straight back into the room through the exhaust. That does not remove allergens; it makes them disperse throughout the room.

The air purifier, the plastic cover, and the idea of buying a new mattress

The 4,290-baht air purifier helped a little in the first week, then things went back to normal. It only works on particles already airborne; it has no way to pull allergens out of fibre. As long as the source stays in the room, the air is re-seeded with fresh particles every time somebody moves on those fabrics.

The plastic cover they tried on the armchair in April made him so hot he abandoned it within four days, and the trapped moisture underneath only made the cushion interior more hospitable to mites. The last resort was a new mattress, but with delivery that runs 12,000 to 18,000 baht, which was out of reach — and even then, the armchair and the blackout curtains would still be in the same room.

Know Your Enemy: The Invisible Creature Living in Every Thai Home

Before reaching a solution, this family had to understand what they were actually dealing with. This is what Dr Nichakan explained that day.

What it is, and where the real problem lies

Dust mites are tiny eight-legged arthropods measuring roughly 0.1 to 0.3 millimetres, far too small to see with the naked eye. They do not bite, do not sting and are not vectors of communicable disease. The problem is not the animal itself. The real allergen is the digestive protein found in their droppings and in the fragments of their bodies after they die. Those particles are extremely light and only microns across, and they lift into the air every time fabric is disturbed — lying down, rolling over, sitting on a cushion, shaking out a blanket.

When a sensitised person inhales them, the immune system overreacts, producing sneezing fits, nasal congestion, itchy eyes, conjunctivitis, chronic rhinitis, itchy rashes, dermatitis, headaches, and in some cases triggering asthma symptoms (see the WHO fact sheet on asthma).

A short, fast life cycle

A single dust mite lives roughly two to four months. A female lays around 40 to 80 eggs in her lifetime, and each mite produces about 20 droppings a day. Given that a single mattress may host a population in the hundreds of thousands or millions, and given that the droppings and fragments do not decompose, they build up in the fibres in layers, year after year. A nine-year-old mattress that has never been cleaned to its inner layers is holding all nine years of it.

Why Thailand is paradise for dust mites

Dust mites thrive at around 25 to 30 degrees Celsius and 65 to 80 percent relative humidity, which happens to describe the average Thai climate for most of the year. In this house, the contact-surface temperature of the mattress and the seat cushion sits between 27 and 31 degrees almost continuously — exactly the range in which they reproduce fastest.

The densest mite habitats in any home are mattresses and pillow fillings, sofas and upholstered chairs, carpets, and curtains. Manop's room contained all four in a single space, none of which had ever been cleaned to the inner fibre in three years.

The Solution the Family Chose: World Health Disinfection's Full-Service Dust Mite Removal

On 28 July 2025, Pimchanok sat searching late into the night and found World Health Disinfection's dust mite removal, mattress, sofa and carpet cleaning service with full disinfection — the first company in Thailand to offer this combination. Four things made her call the next morning.

First, it covers every surface in the room in one visit. Not only the mattress, but the armchair, the pillows, the floor mats and the curtains as well. That matched this room exactly, because the reservoir was never in one place.

Second, curtains are cleaned without being taken down. The two blackout panels hang on a rail nearly 2.6 metres up, needing a ladder and two people to remove — impossible for this household.

Third, it extracts rather than sprays. This mattered enormously for a room used for a clinical procedure every day. The core process pulls dust and allergens out of the fibres, traps them in water, and takes them out of the house — rather than leaving chemical residue on a mattress her father has to sleep on every night.

Fourth, an optional disinfection spraying service can be added in the same visit, covering viruses, bacteria and fungi. The family asked for it across the whole room.

The Chanruangsri family did exactly that. Before booking, Pimchanok phoned Nurse Orawan in advance, and the renal team advised scheduling the work on a day and at a time as far as possible from the exchange rounds, ventilating the room afterwards, and using another room as a temporary exchange point that day. The family followed every point.

The Technology Behind It: How the SIRENA System Works

The heart of the service is the SIRENA System, which is not a vacuum cleaner in the sense most people know. That difference explains why the results differ so much.

Canadian design, 1200W Italian cyclone motor

The machine is designed in Canada and runs a 1200-watt cyclone motor manufactured in Italy. That level of suction is what it takes to lift particles clinging deep inside fibre layers — something an ordinary household vacuum simply cannot do.

Water filtration traps 100% of the dust in water

What sets the SIRENA System apart from everything this family had tried is its water filtration system. The air drawn in with the dust is forced through a body of water in the tank, and every particle is captured and held in that water, 100 percent, with nothing blown back into the room. When the job is done, the water is poured away — meaning nine years of accumulated allergen is genuinely removed from the house rather than simply relocated.

HEPA filtration down to 0.02 micron, and 99.99% allergen removal

After the water stage, the air passes through a HEPA filter that filters down to 0.02 micron. The air leaving the machine is cleaner than the air that went in — which, in a sealed room occupied thirteen hours a day, is what stops the cleaning from creating a new problem. Working together, the high suction, water filtration and HEPA stage remove up to 99.99 percent of allergens from the first session.

Verifiable certification, plus MASTER VACUUM deep cleaning

The SIRENA System is certified by the Asthma Society of Canada, and also carries TUV Rheinland, Certified Vacuums, Dust Mite Proof and Go Green eco-friendly credentials. Where fabric carries accumulated staining or a musty odour that extraction alone cannot resolve, the team adds MASTER VACUUM deep cleaning for mattresses, sofas and carpets — which in this house was applied to both the mattress and the armchair cushion.

10 Reasons to Choose World Health Disinfection's Dust Mite Removal Service

1. The first in Thailand to offer dust mite removal, mattress, sofa and carpet cleaning with full disinfection in a single visit.
2. The SIRENA System, designed in Canada with a 1200W Italian cyclone motor, genuinely lifts particles from the deep fibre layers rather than skimming the surface.
3. Water filtration combined with HEPA down to 0.02 micron, trapping 100% of the dust in water so nothing blows back into the room.
4. 99.99% allergen removal, from the very first session.
5. Certified by the Asthma Society of Canada, plus TUV Rheinland, Certified Vacuums and Dust Mite Proof standards.
6. Covers every dust mite habitat in one room — mattress, pillows, sofas and upholstered chairs, carpets and curtains.
7. Curtains cleaned without removing them from the rail, ideal for households with nobody able to take down large panels.
8. Extraction, not chemical spraying onto the mattress, which suits spaces used daily by patients and elderly residents.
9. Optional disinfection spraying in the same visit, covering viruses, bacteria and fungi.
10. Genuinely useful complimentary products: WELLGIENIC disinfectant wet wipes and CHEMGENE HLD4H disinfectant.

What Happened On-Site: Saturday 16 August 2025

The team arrived at the house in Laplae at 09:15 and finished everything by 14:40, about five hours and twenty-five minutes of work, scheduled to finish comfortably before the 17:00 exchange as the renal team had advised. For the 11:30 exchange that day, the family moved to the downstairs sitting room, prepared in advance as a backup point.

Step 1 — Survey and preparation

The team walked through the dialysis room, the sitting room and the upstairs bedroom, inspecting 2 mattresses, 5 pillows, 1 upholstered armchair, 1 fabric sofa set, 3 floor mats and 4 curtain panels. The dialysis room was placed first in the queue and worked in the greatest detail.

The family then moved the dialysis fluid cartons, exchange sets, drip stand and all medical supplies into the sitting room behind a closed door before work began, and stripped the sheets, pillowcases and seat covers for laundering.

Step 2 — Dust mite extraction with the SIRENA System

The team worked the mattress systematically in overlapping strips so nothing was missed, concentrating on the upper third where the face rests, all four seams, and the left side where Manop habitually lies. Then every pillow, then the armchair — the longest single item in the house — with particular attention to the gap between seat and backrest, the armrests, and beneath the cushion.

Step 3 — Blackout curtains cleaned in place

The two blackout panels on the 2.6-metre rail were cleaned exactly where they hung, without unhooking a single hook — the detail Pimchanok said surprised her most.

Step 4 — Opening the water tank in front of the family

This is the moment Pimchanok says she will remember for the rest of her life. After the mattress was finished, the team set the water filtration tank down in the middle of the room. The clear water poured in at the start had turned into a thick grey-brown liquid with a layer of fine sediment floating on top.

Manop, watching from the balcony, was silent for a long time before he said one sentence: "I've been sleeping on that for nine years. And I sit next to it doing four exchanges a day." After the armchair was finished, the team changed the water again, and the second tank came out no different from the first.

Step 5 — MASTER VACUUM deep cleaning and optional disinfection

Both the mattress and the armchair cushion carried accumulated perspiration staining and a musty odour that extraction alone could not resolve, so the team deep-cleaned both with MASTER VACUUM and advised on the drying interval before use. Then, at the family's request, they disinfected the entire dialysis room — walls, floor, supply table, door handles and light switches — covering viruses, bacteria and fungi, and ventilated the room for the recommended period before Manop returned to it.

Step 6 — Handover and complimentary products

The team walked Pimchanok through every area, advised opening a window for at least one period a day at a time that does not clash with the exchange rounds, opening the curtains for morning sun daily, and recommended a repeat interval suited to a room occupied all day. They handed over WELLGIENIC disinfectant wet wipes and CHEMGENE HLD4H disinfectant, and stressed that anything relating to the dialysis procedure itself must always follow the medical team's instructions first.

Comparison: Ways of Dealing With Dust Mites in a Patient's Room

Note: this table compares only the ability to reduce dust and allergen in fabric fibres. It is not a comparison of any medical treatment.

Before and After in This Home Dialysis Room

Note: the outcomes above are one family's experience, may differ between individuals, and are not a guarantee of any medical result. Any change to medication must be made only under a doctor's assessment.

The Most Common Dust Mite Myths in Households With a Patient

"Our room is spotless, we wipe it daily — how could there be dust mites?"

Visible cleanliness and the allergen load in fibre are two separate things. A room that looks immaculate can still be full of mites in the mattress and the upholstery, because they are not on the smooth surfaces. They are in the fibre layers a cloth cannot reach.

"Sealing the room as tightly as possible is safest"

This is the misconception that hurt this household most. Sealing a room does reduce dust from outside, but it also means the dust generated inside has no way out and the moisture in the fibres cannot escape. Appropriate ventilation at a time that does not clash with the exchange rounds, following the medical team's advice, is worth doing.

"Air conditioning keeps the room dry, so mites can't survive"

Air conditioning cools the air in the room; it does not dry the interior of a mattress or a seat cushion. The contact surfaces of the fabric stay damp continuously even while the room feels cold.

"A sick person reacts to their medicine or fluid, not their bed"

This family held that conclusion for nearly four months. The most direct way to separate the two is to ask whether the symptoms track a place or a product. Here, Manop used the same batch of fluid on a day spent entirely at the hospital and barely sneezed, which points at the place rather than the fluid. That said, any question about medication or dialysis fluid must always be raised with the medical team. Never conclude on your own and never stop using anything on your own.

"The mattress still looks fine, a spray will do"

What determines accumulation is not the outward condition of a mattress but the number of hours someone spends on it. As for sprays, most only penetrate the surface layer and do not remove allergen from the house at all — they simply leave the residue where it was.

"Do it once and it's solved forever"

This one is wrong in the opposite direction. Dust mite removal cuts the allergen load dramatically and immediately, but as long as someone lives in that room thirteen hours a day, accumulation begins again. A heavily used room should be treated on a regular cycle, the same way an air conditioner is serviced on a cycle.

A Real Customer's Words

How Manop Chanruangsri's Story Ends

At 06:30 on Thursday 6 November 2025, Manop sat in the same armchair, in the same room, in the same house, preparing the first bag of the day as he had done nearly two thousand times before.

Three things were different. The blackout curtains are now opened halfway at 07:30 every morning, something that never happened once in the three years before. The small window at the back of the room is aired every day at two in the afternoon, the point furthest from every exchange round. And he did not sneeze once after getting out of bed.

"I'm not cured," he said with a quiet laugh when the team phoned to follow up. "My kidneys are the same. I still do four exchanges a day. I still go to every appointment. But before this I was fighting two things at once without realising it — the kidney disease, and my own room. Now there's only one, and the difference is enormous."

What he says is best is not even about his own symptoms. "I'm glad my daughter has stopped blaming herself," he said slowly. "Three months before that I'd see her at one in the morning watching the dialysis training videos over and over, because she thought she'd made a mistake, when she had done everything right the whole time. That was the part I couldn't stand."

Nurse Orawan still visits every six weeks. The difference is that the household now understands what the word "clean" in her sentence actually covers.

The Chanruangsri family has since booked the dust mite removal service for the dialysis room every four months as a standing household expense. Pimchanok says it is the one line in the family budget she would never consider cutting.

Everything in One Visit, Plus Products You Can Actually Keep Using

What separates this from ordinary cleaning is that everything is completed in a single visit — dust mite extraction with the SIRENA System, deep cleaning with MASTER VACUUM, and optional disinfection spraying — with no need to coordinate several contractors or book several days, which matters enormously in a home built around a patient's timetable. Afterwards you also receive products that genuinely help with ongoing care.

• WELLGIENIC disinfectant wet wipes, killing 99.99 percent of germs, ideal for frequently touched surfaces: door handles, light switches, handrails, table edges and the air conditioner remote.
• CHEMGENE HLD4H disinfectant, killing 99.85 percent of germs within one minute with continued protection for up to 14 days.

For areas that would benefit from steam heat on hard surfaces and hard-to-reach crevices, the Stemar steam machine can also be considered.

In any home with a dialysis patient or other chronically ill resident, always ask the medical and nursing team first which cleaning products may be used in which areas. No product should ever be applied to a dialysis catheter, connection point or exit site without the medical team's guidance.

If Someone in Your Home Spends All Day in One Room

Don't spend another five months on medication the way the Chanruangsri family did. Have the team assess and treat the source at your home — mattress, pillows, sofa, upholstered chairs, carpets and curtains, all completed in one visit, with no need to take the curtains down.

See Service Details and Pricing — Click Here

Frequently Asked Questions About Dust Mite Removal in a Home Patient's Room

Can a household with a peritoneal dialysis patient use a dust mite removal service?

Yes, and the medical or nursing team should always be informed in advance so the work can be scheduled as far as possible from the exchange rounds. Please be clear that this service only reduces dust and allergen in the room. It is not a treatment, does not prevent disease, and is not a substitute for any instruction from your medical team.

We already wash the bedding every week — is a dust mite removal service still necessary?

Yes. Washing bedding only addresses the outer layer, while most dust mites and allergens are embedded deep in the mattress core, the pillow filling and the foam beneath the chair's upholstery. Removing them takes high suction combined with filtration that genuinely captures the particles.

Does the patient need to leave the room, and how long does it take?

We recommend the patient rests in another room while that room is being worked on. For a typical bedroom with one mattress, one upholstered chair and two curtain panels, the work usually takes two to four hours. If deep cleaning is added, the team will advise on drying time in advance.

Do blackout curtains on a high rail need to be taken down first?

No. This service cleans curtains without removing them from the rail, which saves time, reduces the risk of damaging the rail, and suits households with a patient or an elderly resident.

How is the SIRENA System different from a household vacuum cleaner?

The SIRENA System is designed in Canada with a 1200W Italian cyclone motor, combined with water filtration and a HEPA filter down to 0.02 micron. Dust and allergens are trapped in water 100 percent with nothing blown back into the room, achieving 99.99 percent allergen removal — unlike household vacuums, which lack the suction and typically release the finest particles back through the exhaust.

How often should a room occupied all day be treated?

For rooms occupied ten or more hours a day, such as a chronically ill patient's room or a bedbound elderly person's room, we recommend a shorter cycle than usual, roughly every three to four months. For ordinary homes with an allergy or asthma sufferer, every four to six months.

Related Articles and Services

• Dust Mite Removal, Mattress, Sofa and Carpet Cleaning With Full Disinfection
• SIRENA System — Water Filtration + HEPA 0.02 Micron
• Disinfection Spraying Service — Viruses, Bacteria, Fungi
• CHEMGENE HLD4H Disinfectant
• WHO — Household Air Pollution and Health
• Department of Disease Control, Ministry of Public Health (Thailand)

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