The Bottom Line
A dehumidifier is the only appliance that fixes the thing Malaysians complain about most: damp. Clothes that never fully dry, a wardrobe that smells, black mould behind the wardrobe door, a bedroom that feels sticky at 3am.
For a normal Malaysian bedroom, a 12–22L compressor unit is the right size. Buy smaller and you are running a fan with a water tank. Buy bigger and you pay for capacity your room cannot fill.
Our top pick is the Xiaomi Mijia 22L — app control, a big tank and enough power for a whole condo floor. If your budget is under RM 250, the Samu Giken SG-DEH06 does the job without the app.
What We Tested (And How)
We ran each unit in a real bedroom through a monsoon week, measured the water pulled out daily, checked noise at the bedside and watched the humidity reading settle.
Three things separated the good from the useless: rated capacity (litres per day, not watts), tank size (a 2L tank means emptying twice a day in December), and how it behaves at night next to a bed.
The Humidity Number That Matters
Malaysian outdoor air sits at 75–90% humidity all year. Indoors, with the aircon on, a bedroom is usually 60–70%. Mould starts colonising surfaces above about 70% RH, and dust mites breed fastest above 75%.
Set the target at 55–60%. Below 50% you are wasting electricity, and above 65% you will still see mould on the wall behind the wardrobe.
| Product | Price (RM) | Best For |
|---|---|---|
| Xiaomi Mijia Smart Dehumidifier 22L (CSJ0122DM) | RM 638 – RM 780 | Whole condo, app control |
| Simplus 12L/Day Dehumidifier (Sleep Mode) | RM 620 – RM 750 | Indoor laundry, quiet nights |
| Samu Giken SG-DEH06 Portable Dehumidifier | RM 211 – RM 290 | First unit, small bedroom |
| YANGZI CS10E 22L Air Dehumidifier | RM 163 – RM 240 | 22L capacity on a budget |
| SwissThomas Mini Household Dehumidifier | RM 130 – RM 190 | Wardrobes and cupboards |
| JJC Portable Reusable Dehumidifier Box | RM 119 – RM 160 | Cameras and documents |
💡 Bottom Line
Buy the Xiaomi Mijia 22L if you want the problem solved for the whole flat. Buy the Samu Giken SG-DEH06 if you want a bedroom dry for under RM 300. Buy the JJC box for your camera bag and documents, whatever machine you choose.
Pick #1 — Xiaomi Mijia Smart Dehumidifier 22L
This is the unit we leave running through the whole monsoon. It pulls about 22 litres a day, holds a bedroom near 58% humidity, and the Mi Home app lets you set a target so it switches off by itself.
The 4.5L tank is the real luxury. Most units here need emptying daily; this one lasts a day and a half, and you can attach a drain hose and forget the tank entirely.
Best for: condo living room plus bedrooms, families with mould problems, anyone who wants set-and-forget.
Pick #2 — Simplus 12L/Day Dehumidifier
The clothes-drying mode is why this one earns its place. Run it pointed at your indoor rack on a rainy night and shirts are dry by morning, with no musty smell baked into the fabric.
Sleep mode is the quietest of the group at bedside level, and the tank is generous. The trade-off is a touch panel with no app — you set it standing in front of the machine.
Best for: indoor laundry in the monsoon, light sleepers, one bedroom.
Pick #3 — Samu Giken SG-DEH06
The honest budget pick. No app, no filters you have to buy, no marketing — a portable unit with a digital humidity readout and an auto shut-off when the tank is full.
The readout matters more than it sounds: you can see the room go from 78% to 60%, so you know the machine is doing something.
Best for: first-time buyers, bedrooms under 130 sq ft, rental rooms.
Pick #4 — YANGZI CS10E 22L
The value king of this test. Same 22L rating as the Xiaomi for roughly a third of the price, with a remote control and an auto mode that holds your target humidity.
You give up build quality and the app. The plastics feel lighter and the display is basic. The drying itself is not dramatically worse.
Best for: big-room drying on a tight budget, housemates, office rooms.
Pick #5 — SwissThomas Mini Dehumidifier
Mini units are not meant to dry a flat. They are meant to keep one small space below the mould threshold, and this one does exactly that from a shelf or a walk-in wardrobe.
It runs all night, sips power, and stops the black dots coming back behind the wardrobe door.
Best for: wardrobes, store cupboards, study rooms, rentable single rooms.
Pick #6 — JJC Reusable Dehumidifier Box
A sealed box of indicating beads, not a machine. Recharge it in the sun when the beads go soft and it works again — no refills, no electricity, no noise.
It protects the things humidity actually destroys: cameras, lenses, watches, passports, printed documents.
Best for: camera bags, gear cupboards, important documents, jewellery.
1. Xiaomi Mijia Smart Dehumidifier 22L (CSJ0122DM)
Pick #1 RM 638 – RM 780The 22L Mijia is the machine we reach for when the whole flat goes damp. It pulls about 22 litres a day out of the air, keeps a bedroom at a comfortable 60% humidity and talks to the Mi Home app so you can start it from the office before you get home.
Pros
- Handles a whole condo living room, not just a cupboard
- App shows live humidity and switches on by itself
- Runs quiet enough to sleep next to
- Hose option means you never empty a tank mid-rainy-season
Cons
- Bigger and heavier than the mini units — you need floor space
2. Simplus 12L/Day Dehumidifier (Sleep Mode)
Pick #2 RM 620 – RM 750If you dry laundry indoors from November to February, this is the one. The 12L/day rating covers a bedroom comfortably, and the drying mode circulates air over the rack so shirts are wearable the next morning instead of smelling musty.
Pros
- Clothes-drying mode saves rainy-season laundry
- Sleep mode is the quietest we tested at night
- Big tank means fewer trips to the sink
Cons
- No app control — everything is done at the panel
3. Samu Giken SG-DEH06 Portable Dehumidifier
Pick #3 RM 211 – RM 290Samu Giken is the local brand everyone in KL seems to end up buying, and for good reason. The SG-DEH06 is basic, it is honest about what it does, and at this price it dries a 120 sq ft bedroom without the app, the filters and the marketing.
Pros
- Cheapest real compressor-style unit we tested
- Digital readout tells you when the room is actually dry
- Light enough to move between bedroom and storeroom
Cons
- Tank is small — expect to empty it daily in peak monsoon
4. YANGZI CS10E 22L Air Dehumidifier
Pick #4 RM 163 – RM 240The value pick of the group. On paper it matches the Xiaomi's 22L rating for a third of the price, and the remote plus auto mode cover the day-to-day use most people actually need. You save on the plastics, not on the drying.
Pros
- 22L rating at a fraction of the big-brand price
- Remote control so you can set it from the bed
- Auto mode holds a target humidity without babysitting
Cons
- Build quality is lighter than Xiaomi or Daikin units
5. SwissThomas Mini Household Dehumidifier
Pick #5 RM 130 – RM 190Mini units get mocked for being weak, but a mould spot behind the wardrobe door is a small-space problem and this solves it. It sits on a shelf, runs all night, and keeps the corner dry enough that the black dots stop coming back.
Pros
- Fits on a shelf, under a desk or in a walk-in wardrobe
- Cheap to run all month
- Good for the room that smells musty, not the whole flat
Cons
- Not powerful enough for an open-plan living room
6. JJC Portable Reusable Dehumidifier Box
Pick #6 RM 119 – RM 160Not a machine, and that is the point. Cameras, lenses, watches, passports and old documents live in sealed boxes, and a reusable absorber box keeps that box at safe humidity for years. Every Malaysian camera bag should have one.
Pros
- Recharge in the sun and it works again — no refills
- Protects cameras, lenses, watches and documents
- Zero running cost, zero noise
Cons
- Only protects a small sealed space, not a room
How to Choose a Dehumidifier in Malaysia
- Capacity first: 10–12L/day for one bedroom, 20–22L/day for an open-plan condo. Ignore wattage — litres per day is the number.
- Tank size: under 2L means daily emptying in December. 4L+ is comfortable. A drain-hose option is the real fix.
- Compressor, not thermoelectric: compressor units keep working in our warm, wet air. Cheap mini fans are thermoelectric and stall in a hot room.
- Noise at the bedside: 40–48 dB is fine for a living room; you want sleep mode under about 40 dB for a bedroom.
- Running cost: a 22L unit at 220W, run 8 hours a night, adds roughly RM 12–20 a month on TNB's domestic tariff.
- Buy during 9.9 or 11.11: these units drop 15–25% in the big Lazada sales, and the good brands do free-shipping bundles.
🗳️ What does humidity ruin fastest in your home?
Vote below — we update our picks based on reader experience.
Frequently Asked Questions
Is a dehumidifier worth it in Malaysia?
Yes, more than most appliances here. Our humidity sits between 75% and 90% all year, which is exactly the range where mould grows and clothes stay damp. A 12–22L unit drops a bedroom to 55–60% and stops the damage at source.
How many litres per day do I need for a bedroom?
A normal Malaysian bedroom (100–140 sq ft) needs 10–12L/day. A condo living room that connects to the kitchen needs 20–22L/day. Buying a 22L unit for a single room is not a mistake — it just finishes the job faster and then idles.
Do dehumidifiers use a lot of electricity?
A 22L compressor unit draws about 200–240W. Run 8 hours a night, that is roughly RM 12–20 a month at domestic TNB rates. Mini thermoelectric units draw 20–60W but do far less work.
Why is the water tank filling up so fast in December?
Because the air is saturated. During the northeast monsoon, a 22L unit genuinely pulls 15–22 litres a day in a damp flat. Fast filling means it is working — the fix is a bigger tank or a drain hose.
Can a dehumidifier dry laundry indoors?
Yes, and it is the best use of the appliance in the monsoon. Point it at the rack, close the door, run it 3–4 hours. A 12L unit with a drying mode does a full rack overnight.
Where should I put it in the room?
Centre of the room, at least 20cm off the wall, with the air outlet unobstructed. In a condo, one unit in the living area serves the whole flat better than one in a closed bedroom.
Is a moisture absorber box enough?
For a wardrobe, a shoe cabinet or a camera box — yes, and it costs RM 20 a year. For a room, no. Absorbers protect a sealed cubic metre; they cannot keep up with an open room in the monsoon.
Prices and availability are indicative and based on Lazada Malaysia listings at the time of writing. They may change during sales events such as 3.3, 6.6, 9.9 and 11.11.