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TL;DR - The Mistairhome WL-AH02Q (STD) holds 410 mL and mists 51 mL per hour or 22.9 mL per hour, which is 8.0 hours and 17.9 hours per fill; the oil side takes 4.0 mL and runs 15.4 hours per fill at 0.26 mL per hour; it covers 18 sq m (196 sq ft) at a 2.6 m ceiling and measures 21.6 dB on the high step and 19.3 dB on the sleep step; it draws 3.0 W and takes its supply from USB-C 5V/1A or the supplied mains adapter; oil pad in a drawer below the outlet, so a scent change does not mean emptying the tank; the humidistat holds target band 30 to 75 percent in 5 percent steps, held within 3 percent over Wi-Fi 2.4 GHz with Bluetooth fallback for first pairing, and night schedule with a wind-down hour and a wash-day reminder, voice runs through Amazon Alexa and Google Home for on off and the night step; no internal cell on this build; it weighs 459 g and measures 13.4 x 13.4 x 20.2 cm, and ships documented to CE / RoHS / FCC standards for import into Ukraine. MOQ is 200 units per SKU with a 15-25-day lead time, FOB Shenzhen or EXW Longgang.
China Wanlin supplies the Aroma Humidifier with Memory Function and Sleep Mode 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-AH02Q-STD:
| Misting method | Ultrasonic piezo disc at 2.4 MHz on a double isolation seat, with a low-turbulence outlet baffle |
| Tank capacity | 410 mL |
| Mist output on the high step | 51 mL per hour |
| Mist output on the low step | 22.9 mL per hour |
| Run time per fill on the high step | 8.0 hours |
| Run time per fill on the low step | 17.9 hours |
| Coverage area | 18 sq m (196 sq ft) at a 2.6 m ceiling |
| Noise at 1 m on the high step | 21.6 dB |
| Noise at 1 m on the sleep step | 19.3 dB |
| Scent delivery method | Oil pad in a drawer below the outlet, so a scent change does not mean emptying the tank |
| Oil tray capacity | 4.0 mL |
| Oil contact parts | Glass-lined pad holder with a PP lid, chosen because citrus oils craze bare ABS |
| Scent intensity control | Two intensity steps, both below the level that carries across a shared wall |
| Scent run time per tray fill | 15.4 hours |
| Oil use per hour | 0.26 mL per hour |
| Water type | Tap or distilled; the isolator is the reason the sleep figure is two decibels lower |
| Mineral dust handling | Cartridge bay in the tank neck, one cartridge included on the Pro build |
| Fill method | Top fill with a wide mouth and a level window readable from a bed |
| 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 | USB-C 5V/1A or the supplied mains adapter |
| Rated power on the high step | 3.0 W |
| Control interface | Capacitive panel with three mist steps, night mode and a scent on off pad |
| Network link | Wi-Fi 2.4 GHz with Bluetooth fallback for first pairing |
| App platform | night schedule with a wind-down hour and a wash-day reminder |
| Voice assistant support | Amazon Alexa and Google Home for on off and the night step |
| Humidistat range and accuracy | target band 30 to 75 percent in 5 percent steps, held within 3 percent |
| Scheduling | Seven day schedule with four events per day and a sleep window |
| Night light | Amber dot only, no ring, and it switches fully off for light sleepers |
| Protection | Dry-run shut-off, tilt switch, overcurrent limit, sealed base gasket |
| Dimensions | 13.4 x 13.4 x 20.2 cm |
| Weight | 459 g |
| Warranty | 18 months |
| Shipped kit | Standard build, 1 x USB-C cable, 1 x cleaning brush, 1 x oil pipette, instruction leaflet, retail box |
| Units per master carton | 40 |
| Lead time | 15-25 days |
Buyers in Ukraine are not buying fragrance so much as buying a stop to a specific complaint: a dry throat in the morning, a room that smells shut, a child waking coughing, or a guest who mentions the air in a review. 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 with Memory Function and Sleep Mode 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 Ukraine 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. For this configuration that means 22.9 mL per hour at 19.3 dB, holding 17.9 hours per fill and 15.4 hours of scent across an 18 sq m (196 sq ft) room.
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-AH02Q (STD) packs 40 units to a carton, carries 18 months of warranty cover and a 15-25-day stated lead time, and draws 3.0 W on the high step.
Three deployment records from the Aroma Humidifier with Memory Function and Sleep Mode 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 business process outsourcing floor with 400 agents on rotating shifts, air conditioning 24 hours
Timing: One year from January 2025
Twenty-four hour air conditioning across three shifts is the harshest duty cycle in this list, and the failure mode was predictable: units that were never cleaned. The programme that survived had a published cleaning interval of five days, a neck wide enough for a hand, and a cleaning rota attached to the shift handover rather than to a person. Eighty units went in; the rota, not the hardware, is why they are still running.
Deployment: A recording studio with two live rooms and an instrument store holding 40 stringed instruments
Timing: Eighteen months from January 2025
This is the case worth quoting to any buyer who assumes scent is always wanted. The studio owner had already paid for one cracked guitar top, and oil mist settling on unfinished spruce is the same problem from a different direction. The specification that went in was humidification with the tray left empty on every unit, plus a written note in the delivery folder that the tray exists but the studio does not use it. Two years on, the store sits at 45 percent and the instruments have not moved.
Deployment: A wine lodge across the Douro with a tasting room and a small hotel above it
Timing: One year from June 2025
The tasting room is the difficult one: the whole point of it is aroma, and adding a scented mist would be vandalism. Above it, the six hotel rooms run a light scent on a schedule. The two programmes share one model family and one app, and the tasting room's units are simply configured with the tray empty and the light off. A buyer with a mixed estate should be specifying configuration, not hardware, and this is the clearest example we have of it.
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-AH02Q (STD) packs 40 units to a carton, carries 18 months of warranty cover and a 15-25-day stated lead time, and draws 3.0 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 |
| 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. |
| 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. |
| SC03-WORKDESK | A single workstation with a laptop, a phone and a shared air supply | Moisture at the desk, and no smell a neighbour can object to | A compact chassis on the low step, placed upwind of the face rather than beside the keyboard, with the scent step left off in shared space. |
| 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. |
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 22.9 mL per hour at 19.3 dB, holding 17.9 hours per fill and 15.4 hours of scent across an 18 sq m (196 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-AH02Q (STD) packs 40 units to a carton, carries 18 months of warranty cover and a 15-25-day stated lead time, and draws 3.0 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 22.9 mL per hour at 19.3 dB, holding 17.9 hours per fill and 15.4 hours of scent across an 18 sq m (196 sq ft) room.
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 0.185 cubic metres per carton of 40 units, a 40 ft container carries roughly 10,080 units by volume, and a 20 ft about 4,560. 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 15-25 days written on the proforma invoice, and a re-order point set by sell-through rather than by calendar. On the WL-AH02Q (STD) the figures worth carrying into the next order are the 410 mL tank, the 15.4 hours of scent per oil fill, and the 19.3 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-AH02Q-STD.
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 glass-lined pad holder with a pp lid, chosen because citrus oils craze bare abs, 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-AH02Q the tray is 4.0 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 in the tank neck, one cartridge included on the pro build.
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-AH02Q, 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 4.0 mL in the tray and uses 0.26 mL per hour on the step quoted, which works out at 15.4 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 two intensity steps, both below the level that carries across a shared wall let the site set how much of that dose the room actually gets.
What warranty and spares support do you provide?
18 months against manufacturing defect on WL-AH02Q. 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 Ukraine 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 15-25 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-AH02Q (STD) packs 40 units to a carton, carries 18 months of warranty cover and a 15-25-day stated lead time, and draws 3.0 W on the high step.
First orders go wrong in two predictable places, and both are administrative. The first is documentation raised against the wrong model code, which stops a container at the destination for a reason that has nothing to do with the product. The second is a packing list decided after production begins, which forces either a second shipment or a compromise on the spares - and, in this category, a compromise on the oil.
The sequence that avoids both is short. Agree the specification, the destination list and the oil list; evaluate a sample on that specification; confirm the packing list including consumables; then release production against a stated lead time written on the proforma invoice.
For a buyer new to the category we also suggest a mixed container across two or three SKUs rather than a single-SKU container, because the sell-through data from one mixed shipment is worth more than any forecast either side can produce in advance. For this configuration that means 22.9 mL per hour at 19.3 dB, holding 17.9 hours per fill and 15.4 hours of scent across an 18 sq m (196 sq ft) room.
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-AH02Q (STD) the figures worth carrying into the next order are the 410 mL tank, the 15.4 hours of scent per oil fill, and the 19.3 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
