OEM/ODM Factory in China
Customer Service Hotline:
+8613261677119
OEM/ODM Factory in China+8613261677119
TL;DR - The Mistairhome WL-AH05C (PRO) holds 225 mL and mists 22 mL per hour or 10.4 mL per hour, which is 10.2 hours and 21.6 hours per fill; the oil side takes 1.6 mL and runs 5.0 hours per fill at 0.32 mL per hour; it covers 8 sq m (85 sq ft) at a 2.6 m ceiling and measures 25.0 dB on the high step and 22.6 dB on the sleep step; it draws 2.0 W and takes its supply from USB-C 5V/1A, with a 12 V lighter adapter on the fleet build; felt pad in the lid, two to three drops, replaced when the scent changes; the humidistat holds target band 40 to 65 percent in 5 percent steps, held within 5 percent from the controls on the unit, with every setting stored on the unit, no voice path on this chassis; 900 mAh lithium polymer, giving 2.8 hours per charge on the low mist step; it weighs 200 g and measures 7.4 x 7.4 x 12.8 cm, and ships documented to CE / RoHS / FCC standards for import into Malaysia. MOQ is 200 units per SKU with a 20-30-day lead time, FOB Shenzhen or EXW Longgang.
China Wanlin supplies the Car Aroma Humidifier with Essential Oil category as a direct manufacturer, not as a trading intermediary. The unit described below is one configuration out of 24 combinations (8 chassis x 3 SKU builds) that share a common misting family, a common oil path and a common documentation set, so a distributor can build a coherent shelf from one source rather than stitching together unrelated suppliers. Every unit referenced on this page corresponds to a specific bill of materials held on file, so the figures below can be reproduced or independently verified at sample stage.
The scent path is the part that separates this range from a humidifier with a few drops poured into the tank. The oil sits in its own tray or pad above the water line, on seals rated for citrus and resin blends, so the disc, the tank and the gasket never contact the oil. That is what keeps a scented unit serviceable for years rather than seasons, and it is the first thing we ask a buyer to check on a competitor sample.
Full specification of WL-AH05C-PRO:
| Misting method | Ultrasonic piezo micro-disc at 2.4 MHz with a baffled outlet aimed at the cabin |
| Tank capacity | 225 mL |
| Mist output on the high step | 22 mL per hour |
| Mist output on the low step | 10.4 mL per hour |
| Run time per fill on the high step | 10.2 hours |
| Run time per fill on the low step | 21.6 hours |
| Coverage area | 8 sq m (85 sq ft) at a 2.6 m ceiling |
| Noise at 1 m on the high step | 25.0 dB |
| Noise at 1 m on the sleep step | 22.6 dB |
| Scent delivery method | Felt pad in the lid, two to three drops, replaced when the scent changes |
| Oil tray capacity | 1.6 mL |
| Oil contact parts | Felt pad in a PP holder; the shell is UV-stabilised ABS for a dashboard |
| Scent intensity control | One output level, because a stronger scent in a closed cabin is unpleasant |
| Scent run time per tray fill | 5.0 hours |
| Oil use per hour | 0.32 mL per hour |
| Water type | Distilled or bottled; a small disc and a hot dashboard are a scaling combination |
| Mineral dust handling | Cartridge not fitted; bottled water keeps the disc alive through a summer |
| Fill method | Twist-off base filled at a tap, sealed before it goes back in the holder |
| Battery pack | 900 mAh lithium polymer |
| Cordless run time | Up to 2.8 hours per charge on the low mist step |
| Charge time | 2.8 hours from empty |
| Power input | USB-C 5V/1A, with a 12 V lighter adapter on the fleet build |
| Rated power on the high step | 2.0 W |
| Control interface | One button on the top face, long press for the light, no menu |
| Network link | no radio on this build, start and stop are on the unit |
| App platform | no app on this build, the unit is set once and left in the holder |
| Voice assistant support | no voice assistant in a vehicle build |
| Humidistat range and accuracy | target band 40 to 65 percent in 5 percent steps, held within 5 percent |
| Scheduling | Two or four hour run timer with an auto stop when the disc runs dry |
| Night light | Single warm dot, and it can be switched off entirely for night driving |
| Protection | Dry-run shut-off, tilt switch, sealed cap, cell overcharge cut-out |
| Dimensions | 7.4 x 7.4 x 12.8 cm |
| Weight | 200 g |
| Warranty | 12 months |
| Shipped kit | Pro build, + spare misting disc + demineralisation cartridge + 5 oil pads + multilingual manual |
| Units per master carton | 100 |
| Lead time | 20-30 days |
The strongest pull in Malaysia now comes from hospitality, retail and facilities buyers rather than households, because they can put a number on complaints, on dwell time and on room-turn minutes, which makes the decision easy to defend internally. Two routes dominate access. The traditional route is importer to distributor to retail; the faster one is the cross-border seller who buys direct, preps for the marketplace and skips two margin layers.
For the Car Aroma Humidifier with Essential Oil segment the deciding specifications are whether the oil stays out of the water path, whether the scent step can be turned down far enough for a shared room, and what the unit does with dissolved minerals. Peak mist volume ranks below all three, which surprises first-time buyers. This is why the table above states figures by model rather than by marketing tier: a buyer comparing two SKUs needs the noise on the sleep step, the run time per fill and the oil handling side by side, because those three predict both satisfaction and return rates better than any other set.
Wanlin serves Malaysia through three programmes that suit different balance sheets. New partners start with sample evaluation then a mixed trial order. Established distributors move to scheduled container shipments with locked pricing windows. Brand owners run private-label programmes with their own artwork and manuals. In all three cases the factory documentation, including the certificates and oil declarations listed further down this page, references the specific model code on the order rather than a generic family certificate, which is the most common cause of customs delay in this category. On the WL-AH05C (PRO) the figures worth carrying into the next order are the 225 mL tank, the 5.0 hours of scent per oil fill, and the 22.6 dB reading on the sleep step.
Three numbers decide whether this category works in a room, and only one of them appears on most specification sheets. The first is millilitres per hour, quoted for both steps so a buyer can divide it into the tank capacity and know how long a fill lasts before ordering a single unit. The second is hours per fill, which is the number that decides whether a unit needs filling every night or every second night - and therefore whether it survives its first season in a household.
The third is the oil side, and it is the one nobody quotes. Scent is consumed at a rate, not by a setting, and across this range that rate sits between roughly 0.22 and 0.35 mL per hour depending on the step and the disc. Divide the tray capacity by that rate and a buyer knows how many nights a fill of oil lasts, which is the figure that decides whether the product is a pleasure or a chore. Ours is published per model and per step.
Every production batch is sampled for four things before release: mist output against the declared figure by weighed run, the decibel reading at one metre on both steps, oil tray seal integrity after a 72 hour soak in a citrus blend, and dry-run shut-off function on an empty tank. For this configuration that means 10.4 mL per hour at 22.6 dB, holding 21.6 hours per fill and 5.0 hours of scent across an 8 sq m (85 sq ft) room.
Three deployment records from the Car Aroma Humidifier with Essential Oil programme, each with the conditions that shaped it. Site detail is kept because it is the part that transfers: the water, the ceiling, the rota and the complaint are what decide whether a unit stays in service, and none of them appear on a specification sheet.
Deployment: A 140-room hotel whose heating plant dries guest rooms below 25 percent RH for five months of the year
Timing: One full winter, November 2025 to April 2026
Housekeeping decided this one, and the objection was walking. A room that needs water and oil topped up by hand costs a housekeeper four minutes, and four minutes times 140 rooms is the argument that kills most hotel programmes. The compromise was sizing: a tank that lasts two nights on the low step, with the oil tray filled on the same round as the linen change rather than as a separate task. Refill labour dropped to one visit per room every second day, and the hotel extended the programme in February instead of waiting for the season to end.
Deployment: A public sauna with two changing rooms and a cooling-down lounge, open six nights a week
Timing: One year from September 2025
Sauna is the most honest test of a humidity product, because the room starts at 20 percent and the lounge is used by people coming out of 90 degrees with dry throats. Eucalyptus in the tray is traditional here and the lounge now runs it on the low step from opening to closing. The practical finding was about cleaning: at that duty cycle the tank needs washing every fourth day, not every week, and a unit with a neck a hand fits into is the one that actually gets washed.
Deployment: A guesthouse with 16 rooms, burning season from February to April, smoke haze measured daily
Timing: Two burning seasons from February 2025
The honest answer to haze is filtration, and we said so at quotation stage, which cost us the larger part of the order and earned the rest. What the guesthouse bought was humidification for throat comfort in sealed rooms and a scent that made the rooms feel clean on arrival, with a purifier standing next to it doing the actual particulate work. The operator's review scores went up because of the purifier; the humidifier is what guests mention, because it is the thing they can smell and hear.
The pattern across all three is that the deciding factor was never peak output. It was whether the tank lasted a full shift, whether the oil could be refilled inside the round, and whether anyone complained about the smell or the dust. Those are the questions we ask before quoting. The WL-AH05C (PRO) packs 100 units to a carton, carries 12 months of warranty cover and a 20-30-day stated lead time, and draws 2.0 W on the high step.
Four placement patterns cover most of the enquiries we see for this category. The useful observation is that each one is answered by configuration and placement rather than by buying a larger unit, which is the default reflex and usually the wrong one.
| Scenario | Room or site | What the site needs | What the unit does |
| SC01-BEDTIME | Master bedrooms where the scent is part of the wind-down routine | A scent that fades before the sleeper notices it, and a tank that lasts the night | A scheduled step-down holds output low overnight, the light goes fully dark, and the tray runs out of oil around the time the sleeper does. |
| SC06-GUESTROOM | Turned around inside a fixed housekeeping window, twelve rooms to a round | A fill and a scent refresh inside the minutes the room already gets | Top fill from a jug at the bedside and a tray filled without removing the lid, so both tasks sit inside the existing round rather than adding to it. |
| SC02-NURSERY | Rooms shared with a sleeping child, where light and smell both have to be quiet | An unscented night step and a light that switches fully off | The mist runs on the low step with the tray left empty, and the display and the ring both switch off, so the room is humidified without being scented or lit. |
| SC07-CABIN | Parked vehicles that sit in the sun, where heat and smell arrive together | A sealed lid and a scent mild enough for a closed cabin | A cup-holder chassis with a sealed base runs on the vehicle supply, one scent level only, and stops when the disc runs dry. |
Two of these four are decided before the unit is switched on: whether the tank lasts the interval the site can actually service, and whether the scent level is one the room will accept. For this configuration that means 10.4 mL per hour at 22.6 dB, holding 21.6 hours per fill and 5.0 hours of scent across an 8 sq m (85 sq ft) room.
Three costs dominate ownership of this product and only one of them is on the invoice. The first is the appliance. The second is the consumable - cartridges, pads, replacement discs and, on many programmes, the oil itself - which is where the repeat revenue sits for every distributor we work with and which should be planned as a line item rather than bought occasionally. The third is staff time, because a tank that cannot be cleaned quickly is a tank that does not get cleaned.
A factory programme attacks all three. Consumables ship in the same container as the appliances, which is the cheapest way to buy them. Cleaning intervals are published rather than left to guesswork, and the tank geometry is chosen so the published interval is actually achievable by one person on a round.
What we do not offer is the lowest unit price in the market. A cheaper unit in this category usually buys a narrower tank neck, a disc of unspecified origin, seals that swell on contact with citrus oil and no spares path, and every one of those shows up later as a cost somewhere else. For this configuration that means 10.4 mL per hour at 22.6 dB, holding 21.6 hours per fill and 5.0 hours of scent across an 8 sq m (85 sq ft) room.
Compliance in this category splits into three burdens that buyers often treat as one. The first is electrical and appliance safety: the CE technical file, an EMC test report and the IEC 60335-1 household appliance safety report, which is the set that gets a unit onto a shelf in Europe. The second applies only where a cell is fitted: a UN38.3 test report with an IEC 62133 cell report and an MSDS, which is the set that gets a unit onto a vessel.
The third is the oil, and it is the one that catches importers out. Where we ship oil with the unit we provide an IFRA-aligned statement of conformity, an allergen declaration listing the 26 declarable substances where they are present, an MSDS per blend and a flash point figure. That last number decides how the consignment is classified for transport: a blend below 60 C ships as a UN1266 Class 3 flammable liquid with the corresponding documentation and packaging, and a buyer who discovers this at the booking desk discovers it too late.
RoHS and REACH declarations cover the appliance materials, and because the oil contacts specific parts we also issue a material declaration for the tray, the seal and the pad rather than for the unit as a whole. Where a market needs a local approval, we issue against PSE, KC or RCM at the same time as the CE work rather than after it, because the test evidence largely overlaps. On the WL-AH05C (PRO) the figures worth carrying into the next order are the 225 mL tank, the 5.0 hours of scent per oil fill, and the 22.6 dB reading on the sleep step.
The economics of this line are an annuity, not a one-off sale, and buyers who plan it that way outperform the ones who do not. The appliance is the entry; the cartridge, the pad, the replacement disc and, on most programmes, the oil are the repeat, and in the pharmacy, gift and hospitality channels the consumable revenue overtakes the appliance revenue within the first year.
Freight is the part that needs doing carefully. At 0.089 cubic metres per carton of 100 units, a 40 ft container carries roughly 52,300 units by volume, and a 20 ft about 23,700. Those are upper bounds before pallet and loading losses, and the honest planning figure is a little below them.
What we suggest to a first-time buyer is deliberately unglamorous: a mixed trial order across two or three SKUs, spares at one disc per twenty units, a stated lead time of 20-30 days written on the proforma invoice, and a re-order point set by sell-through rather than by calendar. On the WL-AH05C (PRO) the figures worth carrying into the next order are the 225 mL tank, the 5.0 hours of scent per oil fill, and the 22.6 dB reading on the sleep step.
What is the minimum order quantity for a first aroma humidifier order?
MOQ is 200 units per SKU for standard builds and 300 units for custom colour or private-label packaging. Mixed-container orders combining several models are accepted as long as each individual SKU clears its own minimum. The specification table on this page shows the exact build we ship for WL-AH05C-PRO.
Can essential oil go in the water tank, or does it have its own tray?
It has its own tray, and that is the point of the design. The oil sits above the water line on felt pad in a pp holder; the shell is uv-stabilised abs for a dashboard, so the disc, the tank and the gasket never contact it. Pouring oil into the tank is the common construction and it is the reason cheap units fail in the second season: the oil films the disc and swells the seal. On WL-AH05C the tray is 1.6 mL and lifts out for washing.
Does this humidifier leave white mineral dust on furniture?
It depends on the water and on the misting method, and it is the single largest cause of returns in this category. An ultrasonic disc throws everything dissolved in the water into the air, so on a hard supply it leaves a fine white mineral film on dark surfaces within days. The answer is a demineralisation cartridge in the tank, which is a consumable with a real working life. This unit is specified as cartridge not fitted; bottled water keeps the disc alive through a summer.
Which compliance and oil documents ship with an aroma humidifier order?
The standard appliance file set is the CE technical file, RoHS and REACH declarations, an EMC test report and the IEC 60335-1 household appliance safety report, plus a UN38.3 test report with an IEC 62133 cell report and MSDS on any build carrying a cell. Where oil ships with the unit we add an IFRA-aligned statement of conformity, an allergen declaration, an MSDS per blend and a flash point figure for transport classification. Certificates are issued against WL-AH05C, the model code on the order, rather than against a generic family.
Can we sell these under our own brand, with our own packaging?
Yes. Private label covers housing colour, logo placement, retail artwork, manual language, the accessory kit and, on the Plus build, the oil set itself. Most of it sits inside existing tooling for this range, so customisation does not mean re-engineering. The decision we ask buyers to make early is which consumables travel with the appliance, because a unit sold without a cartridge into a hard-water market generates complaints that no artwork will fix.
How much oil does a unit use, and how often does the tray need filling?
Published per model rather than left to guesswork. This unit holds 1.6 mL in the tray and uses 0.32 mL per hour on the step quoted, which works out at 5.0 hours of scent per fill. In a bedroom that is several nights per fill on the low step; in a reception area running all day it is a midweek top-up, and the one output level, because a stronger scent in a closed cabin is unpleasant let the site set how much of that dose the room actually gets.
What warranty and spares support do you provide?
12 months against manufacturing defect on WL-AH05C. Misting discs, pads, cartridges, trays and seals are stocked as separate line items and can ride in the same container as the units, which is the cheapest way to buy them. We suggest one spare disc per twenty units and one cartridge per unit where the water is hard, plus a pad set per unit per year on scented programmes. On Malaysia shipments the parts travel inside the same container as the appliances, which avoids a second freight booking and the paperwork that comes with it.
How long does sampling and first production take?
Samples ship in 5 to 7 working days from an existing specification, or 15 to 20 days if a custom colour is required. First production runs in 20-30 days depending on SKU and quantity, measured from order confirmation and deposit, with the exact figure stated on the proforma invoice rather than left open. Where an oil set ships inside the retail box, the transport classification adds a step at booking.
The programme suits any buyer who has to answer for the product after it is sold, which in practice means everyone except the pure spot trader. A distributor carrying a range needs to know which chassis to put in front of which customer, and the answer is usually decided by water hardness, by who refills the tank, and by how much scent the room will accept.
Hospitality buyers need a fill interval that fits a housekeeping round. Clinical and childcare buyers need a material declaration for every oil contact part and a light that can be turned fully off. Retail and fragrance buyers need a tray they can demonstrate in front of a customer in under a minute. Facilities buyers need one unit per occupied room rather than one per floor, and they need the reasoning written down so it survives staff turnover.
What all of them have in common is that they are specifying against a room and a routine rather than against a specification sheet, which is why we ask about the site before we quote the unit. For this configuration that means 10.4 mL per hour at 22.6 dB, holding 21.6 hours per fill and 5.0 hours of scent across an 8 sq m (85 sq ft) room.
A first order runs in five steps and none of them need to be slow. The first is the specification: which chassis, which SKU build, and which markets, because the market list decides the documentation. The second is sampling, 5 to 7 working days from an existing specification or 15 to 20 if a custom colour is required.
The third is the paperwork - certificates, manuals, artwork, the battery files where a cell is fitted and the oil declarations where oil ships - and it runs in parallel with the second rather than after it, which is where most of the time is either saved or lost. The fourth is production, measured from order confirmation and deposit. The fifth is booking, which is where a battery build or an oil set needs its extra few days.
What we ask a buyer to decide before step one is which consumables and which oil travel with the appliances, because that choice affects the packing list, the freight classification and the lead time, and changing it later costs a second shipment. The WL-AH05C (PRO) packs 100 units to a carton, carries 12 months of warranty cover and a 20-30-day stated lead time, and draws 2.0 W on the high step.
Two things decide whether this product works, and neither is on the box: whether the tank lasts the interval the site can actually service, and whether the scent level is one the room will accept. Get those two right and the rest of the specification rarely matters.
Everything else on this page exists to make those two decisions possible before money moves - the figures by model rather than by marketing tier, the measurement conditions stated next to the decibel, the oil rate stated per hour, and the honest statement of where the answer depends on the room.
Enquiries are welcome from anyone supplying this category at volume, whether as an importer, a distributor, a brand owner, a fragrance or gift company, a facilities or hospitality group, or a cross-border seller. Samples and the full documentation set are available on request. The WL-AH05C (PRO) packs 100 units to a carton, carries 12 months of warranty cover and a 20-30-day stated lead time, and draws 2.0 W on the high step.
Published by: Wanlin Manufacturing Group, MistAirHome Export Division
Published on: September 30, 2026
Data sources: in-house factory testing + misting disc and oil tray specifications + certification and oil declaration files + partner deployment records
Company address: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China
References: factory quality manual + third-party test reports + customer shipment records
Contact: Mistairhome@163.com / +8613261677119 / https://www.mistairhome.com
