Quality Office Humidifier — Wholesale from MistAirHome China Factory. Custom Branding Available.
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Quality Office Humidifier — Wholesale from MistAirHome China Factory. Custom Branding Available.+8613261677119
TL;DR - The Mistairhome WL-AH03L (PRO) holds 6010 mL and mists 204 mL per hour or 93.8 mL per hour, which is 29.5 hours and 64.1 hours per fill; the oil side takes 8.4 mL and runs 32.3 hours per fill at 0.26 mL per hour; it covers 73 sq m (784 sq ft) at a 2.6 m ceiling and measures 29.9 dB on the high step and 27.2 dB on the sleep step; it draws 14.3 W and takes its supply from Mains adapter, 100-240 V, regional plug supplied; two 4 ml oil reservoirs, either side of the collar, filled from the top without moving the unit; the humidistat holds target band 30 to 85 percent in 1 percent steps, held within 3 percent over Wi-Fi 2.4 GHz plus a wired sensor header for a remote probe, and zone view for open-plan floors, with an oil usage counter per day, voice runs through Amazon Alexa and Google Home for target changes, scent step and on off; no internal cell on this build; it weighs 1968 g and measures 28.8 x 28.8 x 47.6 cm, and ships documented to CE / RoHS / FCC standards for import into Saudi Arabia. MOQ is 200 units per SKU with a 20-30-day lead time, FOB Shenzhen or EXW Longgang.
China Wanlin supplies the Aroma Humidifier All Day 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-AH03L-PRO:
| Misting method | Twin ultrasonic piezo disc banks at 1.7 MHz feeding a wide-throw outlet collar |
| Tank capacity | 6010 mL |
| Mist output on the high step | 204 mL per hour |
| Mist output on the low step | 93.8 mL per hour |
| Run time per fill on the high step | 29.5 hours |
| Run time per fill on the low step | 64.1 hours |
| Coverage area | 73 sq m (784 sq ft) at a 2.6 m ceiling |
| Noise at 1 m on the high step | 29.9 dB |
| Noise at 1 m on the sleep step | 27.2 dB |
| Scent delivery method | two 4 mL oil reservoirs, either side of the collar, filled from the top without moving the unit |
| Oil tray capacity | 8.4 mL |
| Oil contact parts | PP reservoirs with fluorinated seals, rated for continuous citrus use |
| Scent intensity control | Four intensity steps, with a duty cycle option for all-day sites |
| Scent run time per tray fill | 32.3 hours |
| Oil use per hour | 0.26 mL per hour |
| Water type | Tap water or distilled; the tank is sized for two nights plus a working day |
| Mineral dust handling | Cartridge bay holding two cartridges, swapped on the disc life counter |
| Fill method | Top fill from a jug, with a level window on two faces |
| Battery pack | Not fitted, runs from the USB-C supply |
| Cordless run time | Not applicable, mains or USB powered |
| Charge time | Not applicable, no internal cell |
| Power input | Mains adapter, 100-240 V, regional plug supplied |
| Rated power on the high step | 14.3 W |
| Control interface | Capacitive panel with target humidity, four mist steps, scent step and a child lock |
| Network link | Wi-Fi 2.4 GHz plus a wired sensor header for a remote probe |
| App platform | zone view for open-plan floors, with an oil usage counter per day |
| Voice assistant support | Amazon Alexa and Google Home for target changes, scent step and on off |
| Humidistat range and accuracy | target band 30 to 85 percent in 1 percent steps, held within 3 percent |
| Scheduling | Seven day schedule with six events per day and a holiday hold mode |
| Night light | Seven-colour floor glow plus a white status bar, both dimmable to off |
| Protection | Dry-run shut-off, tilt switch, overfill overflow channel, sensor fault alert |
| Dimensions | 28.8 x 28.8 x 47.6 cm |
| Weight | 1968 g |
| Warranty | 24 months |
| Shipped kit | Pro build, + spare misting disc + demineralisation cartridge + 5 oil pads + multilingual manual |
| Units per master carton | 6 |
| Lead time | 20-30 days |
The strongest pull in Saudi Arabia 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 Aroma Humidifier All Day 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 Saudi Arabia 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-AH03L (PRO) the figures worth carrying into the next order are the 6010 mL tank, the 32.3 hours of scent per oil fill, and the 27.2 dB reading on the sleep step.
The decision that matters most in this category is not output, it is what the unit does with dissolved minerals, and it is the one most often sold badly. An ultrasonic disc atomises water, and with it everything dissolved in that water, so on a hard supply the minerals become airborne and settle as a fine white film on whatever is nearby. Two answers exist and we build both: a demineralisation cartridge in the tank, which is a consumable with a real working life, or a scented build run on distilled water in markets where the supply is known to be hard.
The second decision is the cleaning path, which is an engineering decision long before it is a marketing one. Standing water at room temperature grows biofilm, and a tank with oil residue in it grows it faster, so the honest interval is every five to seven days in continuous use and every three to four days where a scent is run daily. A tank a hand cannot reach into is a tank that never gets cleaned properly, which is why the openings on this range are sized for a hand and a brush rather than for a photograph.
The third is the control loop. A fixed mist step ignores the room entirely, so a sealed room overshoots while a draughty one never arrives, and a scented room that overshoots is a room that smells wrong. A humidistat with a stated target band, fed by a sensor calibrated at the factory and re-checkable by the buyer with an ordinary hygrometer, is the difference between a product that holds a number and one that merely runs. The WL-AH03L (PRO) packs 6 units to a carton, carries 24 months of warranty cover and a 20-30-day stated lead time, and draws 14.3 W on the high step.
Three deployment records from the Aroma Humidifier All Day 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 lakeside hotel with 48 rooms, closed for six weeks each November for maintenance
Timing: Two seasons from May 2025
What decided this order was the shutdown. A programme that needs to be drained, dried and stored for six weeks and then set up again by a caretaker is a programme that gets abandoned in the second winter, so the specification included a written storage routine and a dry-out before the closure. It sounds trivial; it is the difference between a hotel reordering in year three and one that quietly stops. The hotel reordered in October 2026 with the same model code.
Deployment: A renovated shophouse with a ground-floor tea room and living quarters above, humid subtropical climate
Timing: Fourteen months from April 2025
The tea room is the constraint: it smells of tea and it is supposed to. The humidifier went into the living quarters upstairs, where the air conditioning dries the rooms, and it runs a very light scent that the owner described as 'something that does not fight the tea'. The practical note is a climate one - in a subtropical city the problem is a sealed, air-conditioned room rather than a dry season, and buyers there need a product sized for a bedroom, not for a house.
Deployment: A four-bedroom house in a gated compound, highland climate, dry season from June
Timing: Two dry seasons from June 2024
Nairobi's dry season is mild by any standard, and a buyer there does not need a large tank - what they need is a unit that runs quietly through the night on a small tank, because the water supply is intermittent and a large tank is a burden to fill. A 400 mL chassis with a night schedule is what went in, and the repeat order eighteen months later was for the same model in three more houses in the compound.
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-AH03L (PRO) packs 6 units to a carton, carries 24 months of warranty cover and a 20-30-day stated lead time, and draws 14.3 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 |
| 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. |
| 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. |
| SC10-GIFT | Boxed sets bought to be given, where the packaging carries the decision | A box that survives the shelf and a manual in the buyer's language | A gift configuration with an oil starter set, printed artwork and a multilingual leaflet, packed to a drop-test standard rather than to a catalogue photograph. |
| SC09-HALL | Open-plan lobbies with a ceiling well above a residential one | Output sized against volume, with a target rather than a step | A large-tank chassis holds a measured target and stops when the room arrives, which is the only way a tall space is controlled rather than merely filled. |
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 93.8 mL per hour at 27.2 dB, holding 64.1 hours per fill and 32.3 hours of scent across a 73 sq m (784 sq ft) room.
Buying direct changes three things that no catalogue can show. The first is the bill of materials. A trading company quotes a price; a factory can tell you which disc, which seal and which tray is inside the unit, and what each of them costs to replace. That matters more here than in most categories, because the parts that wear are the parts that meet the oil, and they are the parts that decide whether the product is still in service in March.
The second is what happens when something goes wrong at the destination. A defect that traces to a single component is a component we stock, and it rides in the next container at the cost of the part rather than at the cost of a replacement unit. A distributor who cannot supply a seal or a pad loses the next appliance order along with the goodwill.
The third is the ability to say no. We will decline an ultrasonic build for a hard-water market without the cartridge, and we will decline a resin-heavy oil programme on a chassis with standard silicone seals, because both configurations produce a return rate rather than a reorder. A factory that can change the build is the only kind of supplier that can give that answer honestly. The WL-AH03L (PRO) packs 6 units to a carton, carries 24 months of warranty cover and a 20-30-day stated lead time, and draws 14.3 W on the high step.
Market access for this product is mostly a documentation exercise, and the mapping is stable. Europe wants the CE technical file, an EMC report and IEC 60335-1. North America adds FCC documentation for the digitally controlled models. Japan and Korea issue against PSE and KC, Australia and New Zealand against RCM, and all four want the certificates to name the model being shipped.
The second thing worth knowing is what a certificate does not cover. It does not cover the scent, and a hospitality or childcare buyer will ask about the oil before it asks about EMC. We hold the IFRA statement, the allergen declaration and the MSDS per blend, plus a flash point figure for the transport classification, and those four are the documents that most often decide a hotel or clinic order.
The third is the battery and oil overlay together. Where a cell is fitted and an oil set ships in the retail box, both sit on top of the appliance documentation and each adds a step at freight booking. For a buyer shipping to several markets at once, the cheapest route is to declare the full destination list and the full oil list at quotation stage so the documentation is raised once, in one package, rather than market by market as each order lands. For this configuration that means 93.8 mL per hour at 27.2 dB, holding 64.1 hours per fill and 32.3 hours of scent across a 73 sq m (784 sq ft) room.
Three numbers decide whether this line works for a distributor, and the first one is not the unit price. Freight is the variable most buyers undercount: at 0.302 cubic metres per master carton of 6 units, a 20 ft container takes about 70 cartons, or roughly 420 units, and a 40 ft container about 154 cartons, or roughly 924 units. Those are volume figures before palletisation and loading losses, so a buyer should treat them as an upper bound.
The second number is the consumable. A misting disc is a wearing part with a service life measured in months of continuous use rather than years, and hard water shortens it considerably. Pads and cartridges sit on top of that, and where the programme ships oil, the oil is the fastest-moving line of the three. We suggest one spare disc per twenty units, one cartridge per unit where the water is hard, and a pad set per unit per year, and all of them ride in the same container as the appliances.
The third is the cost of a return. In this category returns split roughly evenly between mineral dust and a scent the room did not want, and both are prevented at specification stage rather than by a better returns process. For this configuration that means 93.8 mL per hour at 27.2 dB, holding 64.1 hours per fill and 32.3 hours of scent across a 73 sq m (784 sq ft) room.
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-AH03L-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 pp reservoirs with fluorinated seals, rated for continuous citrus use, 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-AH03L the tray is 8.4 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 bay holding two cartridges, swapped on the disc life counter.
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-AH03L, 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 8.4 mL in the tray and uses 0.26 mL per hour on the step quoted, which works out at 32.3 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 four intensity steps, with a duty cycle option for all-day sites let the site set how much of that dose the room actually gets.
What warranty and spares support do you provide?
24 months against manufacturing defect on WL-AH03L. 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 Saudi Arabia 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.
This is a programme for buyers who intend to reorder. The first order is rarely the profitable one for either side; what makes it worthwhile is a range that can be relisted next season without a new test round, a spares line that keeps customers, and a consumable that brings them back.
It suits distributors building an air-treatment or home-fragrance shelf, brand owners who want a chassis they can put their own artwork on, gift and fragrance companies planning an oil line alongside the appliance, hospitality groups standardising across several properties, and cross-border sellers who need prep done before the container moves.
It suits less well anyone whose only criterion is the lowest unit price, because the price difference between a well-built unit and the cheapest one on the market is smaller than the cost of the returns it prevents, and in this category the returns arrive as swollen seals and filmed discs rather than as dead appliances. The WL-AH03L (PRO) packs 6 units to a carton, carries 24 months of warranty cover and a 20-30-day stated lead time, and draws 14.3 W on the high step.
The cleanest first orders we see share one habit: the buyer declares the destination list and the oil list at quotation stage. Certificates, manuals, plugs and transport classification all follow from those two lists, and raising them once as a package costs far less than raising them market by market as each order lands.
After that the sequence is ordinary. Sample evaluation first, on the actual specification rather than a similar one, with the buyer measuring mist output by a weighed run, run time per fill at the low step, oil use over a known number of hours, and noise at one metre in a quiet room. Then the proforma invoice, which carries the stated lead time and the packing list rather than leaving them open. Then production, then booking.
The one step buyers skip and regret is the spares decision. Adding a spare disc per twenty units, a cartridge per unit where the water is hard and a pad set per unit per year costs almost nothing on a first container and prevents the top-up shipment that otherwise arrives in the middle of the season. On the WL-AH03L (PRO) the figures worth carrying into the next order are the 6010 mL tank, the 32.3 hours of scent per oil fill, and the 27.2 dB reading on the sleep step.
If there is one thing to take from this page, it is that the oil path and the water answer are the two that decide the return rate, and both can be checked before an order is placed. Lift the tray on a sample and look at what the oil touches, and put the unit on the water it will actually be sold with.
Everything else - output, coverage, run time, oil use, documentation - is measurable and published here so it can be verified rather than taken on trust. Where the answer depends on the room we say so rather than quoting a number that only holds in a laboratory.
Wanlin supplies this range as a manufacturer and is open to partnership with distributors, brand owners, fragrance and gift companies, hospitality and facilities buyers, cross-border sellers and export traders. Samples, specification sheets and certificates are available on request. On the WL-AH03L (PRO) the figures worth carrying into the next order are the 6010 mL tank, the 32.3 hours of scent per oil fill, and the 27.2 dB reading on the sleep 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
