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TL;DR - The Mistairhome WL-SM01W (STD) holds 410 mL and mists 52 mL per hour or 23.9 mL per hour, which is 7.9 hours and 17.2 hours per fill; it covers 14 sq m (147 sq ft) at a 2.6 m ceiling and measures 24.8 dB on the high step and 22.0 dB on the sleep step; it draws 3.5 W and takes its supply from USB-C 5V/1A, runs from a laptop port or a phone charger; the humidistat holds target band 30 to 80 percent in 5 percent steps, held within 3 percent over Wi-Fi 2.4 GHz with Bluetooth fallback for first pairing, and the voice path is Amazon Alexa and Google Home, plus Siri Shortcuts on iOS; no internal cell on this build; it weighs 450 g and measures 10.6 x 10.6 x 19.2 cm, and ships documented to CE / RoHS / FCC standards for import into Norway. MOQ is 200 units per SKU with a 15-25-day lead time, FOB Shenzhen or EXW Longgang.
China Wanlin supplies the Smart Battery Humidifier 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 tank and seal line 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.
Full specification of WL-SM01W-STD:
| Misting method | Ultrasonic piezo disc at 1.7 MHz on a floating silicone isolator, cool mist, no heater in the path |
| Tank capacity | 410 mL |
| Mist output on the high step | 52 mL per hour |
| Mist output on the low step | 23.9 mL per hour |
| Run time per fill on the high step | 7.9 hours |
| Run time per fill on the low step | 17.2 hours |
| Coverage area | 14 sq m (147 sq ft) at a 2.6 m ceiling |
| Noise at 1 m on the high step | 24.8 dB |
| Noise at 1 m on the sleep step | 22.0 dB |
| Water type | Tap water or distilled; a demineralisation cartridge drops into the tank neck |
| Mineral dust handling | Cartridge optional, recommended wherever the supply is hard |
| Fill method | Wide top opening, filled in place from a jug |
| 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, runs from a laptop port or a phone charger |
| Rated power on the high step | 3.5 W |
| Network link | Wi-Fi 2.4 GHz with Bluetooth fallback for first pairing |
| App platform | iOS 14 or later and Android 9 or later, live humidity trace and 30 day history |
| Voice assistant support | Amazon Alexa and Google Home, plus Siri Shortcuts on iOS |
| Humidistat range and accuracy | target band 30 to 80 percent in 5 percent steps, held within 3 percent |
| Control interface | Touch strip with three mist steps, sleep mode and a two, four or eight hour timer |
| Night light | Amber ring below 4 lux, dimmable to fully dark |
| Protection | Dry-run shut-off by tank float, tilt switch, overcurrent limit on the adapter |
| Scheduling | Seven day schedule with four events per day, states restored after a power cut |
| Dimensions | 10.6 x 10.6 x 19.2 cm |
| Weight | 450 g |
| Warranty | 12 months |
Shipping configuration: Standard build, 1 x USB-C cable, 1 x cleaning brush, instruction leaflet, retail box. Master carton holds 60 units. Stated lead time is 15-25 days from order confirmation and deposit. Misting discs, wicks and cartridges are repeat line items and are ordered separately from the appliance.
Buyers in Norway are not buying comfort so much as buying a stop to a specific complaint: a dry throat in the morning, static off a carpet, a child waking coughing, or white dust on dark furniture. Channel structure follows a stable pattern: importers take container volumes, regional distributors break bulk into pharmacy, hospitality and facilities supply, and online sellers absorb the mixed-SKU remainder that suits catalogue breadth.
Returns in the Smart Battery Humidifier category cluster around three causes: mineral dust on hard water, an app that cannot hold a schedule, and units sized to a floor area in a room with a much higher ceiling. All three are answered at quotation stage rather than after arrival. 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 water handling side by side, because those three predict both satisfaction and return rates better than any other set.
Wanlin serves Norway 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 battery files 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 23.9 mL per hour at 22.0 dB, holding 17.2 hours per fill across a 14 sq m (147 sq ft) room.
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 coverage figure, and it is the one most often quoted dishonestly. We state the ceiling height behind it, because a floor area alone means nothing: a room with 3.4 m ceilings holds proportionally more air and will run a unit dry faster than the floor plan suggests, and a mechanically ventilated room loses moisture continuously regardless of its size. Any buyer can check this in twenty minutes with a hygrometer, and we would rather they did.
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, pack capacity against the cell specification by discharge test where a cell is fitted, and dry-run shut-off function on an empty tank. The WL-SM01W (STD) packs 60 units to a carton, carries a 12 months warranty and a 15-25 days stated lead time, and draws 3.5 W on the high step.
Three deployment records from the Smart Battery Humidifier 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 tea warehouse where leaf moisture affects the auction sample
Timing: One year from March 2025
Warehouse humidity decides sample grade, and the manager had been adjusting ventilation by feel. A held target with a log made the adjustment repeatable and gave the manager something to show the buyer. Sample consistency improved enough that the warehouse stopped discounting the first lots of the season.
Deployment: A cliff-top apartment block 200 m from the Pacific where the salt air reaches the balconies year round
Timing: Fifteen months from March 2025
Coastal installations fail at the connector before they fail at the disc. On this site the first year's returns were all charging-port corrosion, not electronics, so the fix was mechanical: a sealed port flap and a stand that lifts the unit clear of the balcony film. Once the units stopped coming back, the administrator asked for the humidity log, which is when the smart build earned its place.
Deployment: A commercial greenhouse growing tomato transplants on 4,000 sq m under glass
Timing: Two seasons from February 2025
Transplant losses in the first week were the grower's problem, and they tracked humidity, not temperature. Two console units hold 60 percent across the propagation benches and alarm if the band is missed overnight, which is when the losses happened. Transplant loss fell from 9 percent to under 3 across the season.
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 unit could be cleaned inside the time a round allows, and whether anyone complained about the noise or the dust. Those are the questions we ask before quoting. The WL-SM01W (STD) packs 60 units to a carton, carries a 12 months warranty and a 15-25 days stated lead time, and draws 3.5 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 |
| SC08-EMPTY | Holiday lets, cabins and seasonal villas that sit unoccupied for weeks | An appliance in an empty house has to be verifiable from somewhere else. | Remote arming holds a low maintenance target while the property is empty and raises it before arrival, with the log replacing the drive-out inspection. |
| SC03-FLEET | Portfolios of rooms run by one person: hotels, serviced apartments and student blocks | Walking the corridor to check water levels is the cost that kills these programmes, not the hardware. | Per-room status on one dashboard turns the morning round into a list of the rooms that actually need attention. |
| SC09-PROCESS | Production floors where the product itself is moisture sensitive | Static, curl and breakage are production problems long before they are comfort problems. | Grouping by zone sets a whole line from one command, and the log sits beside the shift output so the cause and the effect are in the same file. |
| SC04-HANDSFREE | Rooms where the occupant is holding something, standing far away or working in the dark | A phone in the hand is a control surface nobody has to reach for. | Voice commands set the target and the step, which is why this build is specified in treatment rooms and clinics where hands are occupied. |
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 cleaning task fits the round. For this configuration that means 23.9 mL per hour at 22.0 dB, holding 17.2 hours per fill across a 14 sq m (147 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 cell and which seal is inside the unit, and what each of them costs to replace. That matters in this category more than most, because the wearing parts 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 consumable 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, because that configuration produces a return rate rather than a reorder, and a factory that can change the build is the only kind of supplier that can give that answer honestly. The WL-SM01W (STD) packs 60 units to a carton, carries a 12 months warranty and a 15-25 days stated lead time, and draws 3.5 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 water path, and a clinical or childcare buyer will ask about that before it asks about EMC. We hold a material declaration for every wetted part - tank, seal, disc and outlet - and it is the document that most often decides a hospital order.
The third is the battery overlay. Where a cell is fitted, UN38.3 and IEC 62133 sit on top of everything else and add a step at freight booking. For a buyer shipping to several markets at once, the cheapest route is to declare the full destination 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 23.9 mL per hour at 22.0 dB, holding 17.2 hours per fill across a 14 sq m (147 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 wick and the replacement disc are the repeat, and in the pharmacy and hospitality channels the consumable revenue overtakes the appliance revenue within the first year.
Freight is the part that needs doing carefully. At 0.165 cubic metres per carton of 60 units, a 40 ft container carries roughly 16,980 units by volume, and a 20 ft about 7,680. 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-SM01W (STD) the figures worth carrying into the next order are the 410 mL tank, the 17.2 hours per fill on the low step, and the 22.0 dB reading on the sleep step.
What is the minimum order quantity for a first smart 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-SM01W-STD.
How is the noise figure measured, and what does it mean in a bedroom?
We measure at one metre in a semi-anechoic corner and quote the step, so the two published figures for WL-SM01W are 24.8 dB on the high step and 22.0 dB on the sleep step. The sleep-step figure is the one to compare, because it is the step a bedroom unit is left on all night. A buyer can repeat the measurement in a quiet room with a phone application and will get within a decibel or two.
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. Two answers exist: a demineralisation cartridge in the tank, which is a consumable with a real working life, or an evaporative build where the minerals stay in the wick. This unit is specified as cartridge optional, recommended wherever the supply is hard.
Which compliance files ship with a smart humidifier order?
The standard file set is the CE technical file, RoHS and REACH declarations, an EMC test report, the IEC 60335-1 household appliance safety report, and for battery builds a UN38.3 test report with an IEC 62133 cell report and MSDS. For North America we add FCC documentation for the digitally controlled models. Certificates are issued against WL-SM01W, 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 and the accessory kit, and 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.
Does the unit keep holding its target if the router drops or the internet is down?
Yes, and this is the question we would ask first if we were buying. The target and the schedule are stored on the unit rather than in the cloud, so the network is a convenience and not a dependency. With the link down WL-SM01W keeps running the closed loop to the last target set, target band 30 to 80 percent in 5 percent steps, held within 3 percent, and the local panel still sets every step. When the connection returns the log backfills, which matters because the useful part of a trace is the part when nobody was watching. The link on this build is Wi-Fi 2.4 GHz with Bluetooth fallback for first pairing, and iOS 14 or later and Android 9 or later, live humidity trace and 30 day history.
What warranty and spares support do you provide?
12 months against manufacturing defect on WL-SM01W. Misting discs, wicks, cartridges, seals and cells 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.
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. Battery shipments add a documentation 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 shelf, brand owners who want a chassis they can put their own artwork on, pharmacy and home-care groups planning a consumable line, 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. The WL-SM01W (STD) packs 60 units to a carton, carries a 12 months warranty and a 15-25 days stated lead time, and draws 3.5 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.
The sequence that avoids both is short. Agree the specification and the destination 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 23.9 mL per hour at 22.0 dB, holding 17.2 hours per fill across a 14 sq m (147 sq ft) room.
If there is one thing to take from this page, it is that the held target and the water answer are the two that decide the return rate, and both can be checked before an order is placed. Measure the noise on the step people sleep on, and put the unit on the water it will actually be sold with.
Everything else - output, coverage, run time, 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, pharmacy and home-care groups, hospitality and facilities buyers, cross-border sellers and export traders. Samples, specification sheets and certificates are available on request. On the WL-SM01W (STD) the figures worth carrying into the next order are the 410 mL tank, the 17.2 hours per fill on the low step, and the 22.0 dB reading on the sleep step.
Published by: Wanlin Manufacturing Group, MistAirHome Export Division
Published on: September 29, 2026
Data sources: in-house factory testing + misting disc and cell specifications + certification and battery 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
