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Quiet Humidifier for Living Room for Hong Kong, China Buyers (WL-QH01S PLUS): Mistairhome Quiet Humi

Quiet Humidifier for Living Room for Hong Kong, China Buyers (WL-QH01S PLUS): Mistairhome Quiet Humi

  • Release Date: 2026-09-28
  • Description: Mistairhome WL-QH01S (PLUS) - Quiet Humidifier for Living Room with a 410 mL tank misting 50 mL per hour, covering 13 sq m (142 sq ft) at a 2.6 m ceiling, running 16.7 hours per fill, rated 25.4 dB on the high step and 22.7 dB on the sleep step, no internal cell on this build, for Hong Kong, China wholesale, OEM and ODM buyers.
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Executive Summary - Specification and Supply Position

Quiet Humidifier for Living Room WL-QH01S supplied to Hong Kong, China importers

TL;DR - The Mistairhome WL-QH01S (PLUS) holds 410 mL and mists 50 mL per hour or 24.5 mL per hour, which is 8.2 hours and 16.7 hours per fill; it covers 13 sq m (142 sq ft) at a 2.6 m ceiling and measures 25.4 dB on the high step and 22.7 dB on the sleep step; it draws 2.5 W and runs from USB-C 5V/1A, runs from a laptop port or a phone charger; no internal cell on this build; it weighs 418 g and measures 10.4 x 10.4 x 18.6 cm, and ships documented to CE / RoHS / FCC standards for import into Hong Kong, China. MOQ is 200 units per SKU with a 25-35-day lead time, FOB Shenzhen or EXW Longgang.

China Wanlin supplies the Quiet Humidifier for Living Room 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-QH01S-PLUS:

Misting methodUltrasonic piezo disc at 1.7 MHz on a floating silicone isolator, cool mist, no heater in the path
Tank capacity410 mL
Mist output on the high step50 mL per hour
Mist output on the low step24.5 mL per hour
Run time per fill on the high step8.2 hours
Run time per fill on the low step16.7 hours
Coverage area13 sq m (142 sq ft) at a 2.6 m ceiling
Noise at 1 m on the high step25.4 dB
Noise at 1 m on the sleep step22.7 dB
Water typeTap water or distilled; a demineralisation cartridge drops into the tank neck
Mineral dust handlingCartridge optional, recommended wherever the supply is hard
Fill methodWide top opening, filled in place from a jug
Battery packNot fitted, runs from the USB-C supply
Cordless run timeNot applicable, mains or USB powered
Charge timeNot applicable, no internal cell
Power inputUSB-C 5V/1A, runs from a laptop port or a phone charger
Rated power on the high step2.5 W
Control interfaceTouch strip with three mist steps, sleep mode and a two, four or eight hour timer
Night lightAmber ring below 4 lux, dimmable to fully dark
ProtectionDry-run shut-off by tank float, tilt switch, overcurrent limit on the adapter
Dimensions10.4 x 10.4 x 18.6 cm
Weight418 g
Warranty12 months

Shipping configuration: Plus build, + hard carry case + wick and cartridge starter set + gift box + funnel. Master carton holds 36 units. Stated lead time is 25-35 days from order confirmation and deposit. Misting discs, wicks and cartridges are repeat line items and are ordered separately from the appliance.

Why Buyers Are Sourcing This Category Now

Three things move this category in Hong Kong, China: heated or cooled air that dries a room faster than people expect, buildings sealed tightly enough that nothing replaces the moisture, and a cleaning task that decides whether the product is still in use by March. 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.

Distributors handling Quiet Humidifier for Living Room lines consistently find that the repeat revenue sits in the consumable, in cartridges and wicks and replacement discs, rather than in the appliance. 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 Hong Kong, China 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. The WL-QH01S (PLUS) packs 36 units to a carton, carries a 12 months warranty and a 25-35 days stated lead time, and draws 2.5 W on the high step.

Engineering Notes - Noise, Mist Output and Water Quality

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-QH01S (PLUS) packs 36 units to a carton, carries a 12 months warranty and a 25-35 days stated lead time, and draws 2.5 W on the high step.

Featured Deployment and Field Case Records

Three deployment records from the Quiet Humidifier for Living Room 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.

Case Study 1: Christchurch, New Zealand

Deployment: A rest-home operator with 130 rooms across four facilities

Timing: Two winters from April 2025

Older residents feel dry air more acutely and are more likely to be woken by noise, so the operator set both criteria: a quiet sleep step and a light that can be switched fully off. The four facilities were fitted in sequence over two winters, and the operator now includes both requirements in its standard room specification.

Case Study 2: Zaragoza, Spain

Deployment: A regional home-appliance retail chain with 14 stores

Timing: One year from October 2024

Retail buyers care about the shelf, so the first conversation was about artwork and multilingual manuals rather than mist output. We supplied retail box artwork in Spanish and English with the same chassis underneath. The chain's own staff training note now leads with the cleaning interval, which came from our specification sheet and which they say reduced the counter questions noticeably.

Case Study 3: Kazan, Russia

Deployment: A regional retail chain with 19 home-appliance stores

Timing: Two heating seasons from October 2024

Kazan's heating season runs long and hard, and the chain's own returns data showed the same pattern seen everywhere: the majority of returns came from mineral dust, not from malfunction. The chain now ships the cartridge-equipped SKU as standard rather than as an accessory, and the dust complaint has effectively disappeared from their returns log.

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-QH01S (PLUS) packs 36 units to a carton, carries a 12 months warranty and a 25-35 days stated lead time, and draws 2.5 W on the high step.

Application Scenarios Across Bedrooms, Offices and Wards

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.

ScenarioRoom or siteWhat the site needsWhat the unit does
SC06-CLEANINGSites where one person cleans twenty rooms on a timed roundAnything that has to be carried to a sink inverted, or scrubbed through a narrow neck, adds minutes to every room turned that day.Top fill from a jug and a tank opening a hand can reach into, which is why housekeeping accepts this chassis and rejects narrow-neck designs on sight.
SC05-HARDWATERMarkets on hard municipal water where every ultrasonic plume leaves mineral dustWhite dust on dark furniture is the complaint that generates the return, not the dryness.A demineralisation cartridge in the tank neck, or an evaporative build that sidesteps the problem entirely by leaving the minerals in the wick.
SC04-LIGHTSRooms where occupants sleep with the light off and wake if anything glowsA lamp that can only be dimmed and not extinguished is the most common reason a unit gets unplugged.The night light switches to fully dark, the status indicator sits behind the outlet grille, and the display dims to nothing without changing the mist output.
SC03-WORKSTATIONIndividual desks on an open-plan floor served by mechanical ventilationA corridor or ceiling-mounted unit cannot reach a desk when the supply diffuser is moving air.One compact unit per desk cluster sits inside the two-metre radius where the plume is still airborne, which is a placement answer rather than an output answer.

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 24.5 mL per hour at 22.7 dB, holding 16.7 hours per fill across a 13 sq m (142 sq ft) room.

What a Factory-Direct Programme Changes for the Buyer

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-QH01S (PLUS) packs 36 units to a carton, carries a 12 months warranty and a 25-35 days stated lead time, and draws 2.5 W on the high step.

Certification, Water Quality and Market Access

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 24.5 mL per hour at 22.7 dB, holding 16.7 hours per fill across a 13 sq m (142 sq ft) room.

Unit Economics, Consumables and Order Sizing

Order sizing in this category is a volume question before it is a quantity question, because the units differ in size by more than an order of magnitude across the range. A master carton of this model holds 36 units at 0.092 cubic metres, which puts roughly 8,280 units in a 20 ft container and 18,216 units in a 40 ft container on a pure volume basis.

That figure is the starting point, not the answer. Palletisation, loading losses and the mix of SKUs in the container all pull it down, and a mixed container across three SKUs will not hit the single-SKU number. We run the mix with the buyer before quoting freight, because the difference between a planned and an unplanned container is usually one extra shipment a season.

The second sizing decision is the spares ratio, which most first-time buyers set too low. One spare disc per twenty units and one cartridge per unit on hard water is the ratio that prevents the awkward second shipment, and the parts are cheap enough that over-ordering them costs less than the freight of a top-up. The WL-QH01S (PLUS) packs 36 units to a carton, carries a 12 months warranty and a 25-35 days stated lead time, and draws 2.5 W on the high step.

Buyer Questions Answered

What is the minimum order quantity for a first quiet 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-QH01S-PLUS.

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-QH01S are 25.4 dB on the high step and 22.7 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 quiet 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-QH01S, 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.

How often does the unit need cleaning, and what does that involve?
Every five to seven days in continuous use, with a full dry-out if the unit will stand unused. That interval is why we specify a wide tank opening on this chassis: a tank a hand cannot reach into is a tank that never gets cleaned properly. Biofilm in standing water is the underlying reason, and it is not a defect, it is what water at room temperature does.

What warranty and spares support do you provide?
12 months against manufacturing defect on WL-QH01S. 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 25-35 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.

Who This Programme Suits

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-QH01S (PLUS) packs 36 units to a carton, carries a 12 months warranty and a 25-35 days stated lead time, and draws 2.5 W on the high step.

How a First Order Is Structured

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 and the battery files where a cell is fitted - 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 needs its extra few days.

What we ask a buyer to decide before step one is which consumables travel with the appliances, because that choice affects the packing list and the freight, and changing it later costs a second shipment. The WL-QH01S (PLUS) packs 36 units to a carton, carries a 12 months warranty and a 25-35 days stated lead time, and draws 2.5 W on the high step.

Next Step for Import Buyers

If there is one thing to take from this page, it is that the quiet claim and the dust claim 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-QH01S (PLUS) the figures worth carrying into the next order are the 410 mL tank, the 16.7 hours per fill on the low step, and the 22.7 dB reading on the sleep step.


Published by: Wanlin Manufacturing Group, MistAirHome Export Division
Published on: September 28, 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