High-Power Campfire Fan — Brushless Turbo Technology. MistAirHome Direct Manufacturer.
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TL;DR - The Mistairhome WL-QH04L (PLUS) holds 6520 mL and mists 248 mL per hour or 113.1 mL per hour, which is 26.3 hours and 57.6 hours per fill; it covers 65 sq m (702 sq ft) at a 2.6 m ceiling and measures 30.8 dB on the high step and 28.1 dB on the sleep step; it draws 13.2 W and runs from Mains adapter, 100-240 V, regional plug supplied; no internal cell on this build; it weighs 1767 g and measures 26.8 x 26.8 x 44.6 cm, and ships documented to CE / RoHS / FCC standards for import into Malaysia. 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 Whole House 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-QH04L-PLUS:
| Misting method | Ultrasonic piezo disc bank at 1.7 MHz feeding a wide-throw outlet collar |
| Tank capacity | 6520 mL |
| Mist output on the high step | 248 mL per hour |
| Mist output on the low step | 113.1 mL per hour |
| Run time per fill on the high step | 26.3 hours |
| Run time per fill on the low step | 57.6 hours |
| Coverage area | 65 sq m (702 sq ft) at a 2.6 m ceiling |
| Noise at 1 m on the high step | 30.8 dB |
| Noise at 1 m on the sleep step | 28.1 dB |
| Water type | Tap water or distilled; the tank is sized for a full night plus a working day |
| Mineral dust handling | Cartridge bay in the tank neck, two cartridges included on the Plus build |
| Fill method | Top fill from a jug, with a level window readable from standing height |
| 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 | 13.2 W |
| Control interface | Dial with four mist steps, a humidistat band and a 1 to 12 hour timer |
| Night light | White status bar readable from a doorway, dimmable |
| Protection | Dry-run shut-off, tilt switch, overfill overflow channel, overcurrent limit |
| Dimensions | 26.8 x 26.8 x 44.6 cm |
| Weight | 1767 g |
| Warranty | 24 months |
Shipping configuration: Plus build, + hard carry case + wick and cartridge starter set + gift box + funnel. Master carton holds 4 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.
Three things move this category in Malaysia: 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. 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 Quiet Humidifier for Whole House category cluster around three causes: mineral dust on hard water, units audible at night, 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 Malaysia through three programmes that suit different balance sheets. New partners start with sample evaluation then a mixed trial order. Established distributors move to scheduled container shipments with locked pricing windows. Brand owners run private-label programmes with their own artwork and manuals. In all three cases the factory documentation, including the certificates and 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-QH04L (PLUS) packs 4 units to a carton, carries a 24 months warranty and a 25-35 days stated lead time, and draws 13.2 W on the high 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 an evaporative wick where the water never becomes airborne at all and the minerals stay behind in the wick.
The second decision is the control loop. A fixed mist step ignores the room entirely, so a sealed room overshoots while a draughty one never arrives. A humidistat with a stated target band, fed by a sensor that is calibrated at the factory and re-checkable by the buyer with a twenty-dollar hygrometer, is the difference between a product that holds a number and one that merely runs.
The third is the cleaning path, which is an engineering decision long before it is a marketing one. Standing water at room temperature grows biofilm, so the honest interval is every five to seven days in continuous use, and a tank a hand cannot reach into is a tank that never gets cleaned properly. For this configuration that means 113.1 mL per hour at 28.1 dB, holding 57.6 hours per fill across a 65 sq m (702 sq ft) room.
Three deployment records from the Quiet Humidifier for Whole House 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 student housing foundation with 1,100 beds across eight buildings
Timing: Two academic years from August 2024
The foundation ran a proper trial: 40 units across two buildings for one term, with a survey at the end. The result they cared about was not satisfaction but how many units were still in use in March, which is the number that predicts the next order. Roughly four in five were still running, and the ones that were not had mostly been unplugged because of light rather than noise, which drove the move to models with a switchable-off lamp.
Deployment: A hotel and casino complex refurbishing 300 guest rooms
Timing: Eight months from September 2025
A refurbishment of that size runs on a fixed schedule, so the freight and documentation timeline mattered more than the unit specification. Battery shipments add a documentation step at booking, which we handled but which needs a few extra days on the freight side, and building that into the schedule is what kept the rooms on programme.
Deployment: A resort with 60 rooms and an on-site spa
Timing: Fourteen months from August 2025
The spa was the driver rather than the rooms: treatment rooms hold a target humidity for client comfort and for the products used, and the spa manager could state the target she needed. The humidistat chassis held it, and the rooms followed in a second order once the resort saw the unit running reliably for a 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-QH04L (PLUS) packs 4 units to a carton, carries a 24 months warranty and a 25-35 days stated lead time, and draws 13.2 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 |
| SC03-WORKSTATION | Individual desks on an open-plan floor served by mechanical ventilation | A 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. |
| SC04-LIGHTS | Rooms where occupants sleep with the light off and wake if anything glows | A 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. |
| SC05-HARDWATER | Markets on hard municipal water where every ultrasonic plume leaves mineral dust | White 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. |
| SC06-CLEANING | Sites where one person cleans twenty rooms on a timed round | Anything 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. |
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 113.1 mL per hour at 28.1 dB, holding 57.6 hours per fill across a 65 sq m (702 sq ft) room.
Three costs dominate ownership of this product and only one of them is on the invoice. The first is the appliance. The second is the consumable - cartridges, wicks and replacement discs - which is where the repeat revenue sits for every distributor we work with and which should be planned as a line item rather than bought occasionally. The third is staff time, because a tank that cannot be cleaned quickly is a tank that does not get cleaned.
A factory programme attacks all three. Consumables ship in the same container as the appliances, which is the cheapest way to buy them. Cleaning intervals are published rather than left to guesswork, and the tank geometry is chosen so the published interval is actually achievable by one person on a round.
What we do not offer is the lowest unit price in the market. A cheaper unit in this category usually buys a narrower tank neck, a disc of unspecified origin and no spares path, and every one of those shows up later as a cost somewhere else. For this configuration that means 113.1 mL per hour at 28.1 dB, holding 57.6 hours per fill across a 65 sq m (702 sq ft) room.
Compliance in this category splits into two burdens that buyers often treat as one. The first is electrical and appliance safety: the CE technical file, an EMC test report and the IEC 60335-1 household appliance safety report, which is the set that gets a unit onto a shelf in Europe. The second applies only where a cell is fitted: a UN38.3 test report with an IEC 62133 cell report and an MSDS, which is the set that gets a unit onto a vessel.
The failure mode is predictable. A buyer orders a cordless build, books the freight, and discovers at booking that the cell documentation has not been raised for that specific model code. The units sit, the season moves, and the cost is not the certificate - it is the delay. We raise the documentation against the model code on the order rather than against a family, which is the only version a customs officer will accept.
RoHS and REACH declarations cover materials, and where a buyer's own regulator asks about the water path, we supply a declaration covering every wetted part. Where a market needs a local approval, we issue against PSE, KC or RCM at the same time as the CE work rather than after it, because the test evidence largely overlaps and doing them together costs far less than doing them twice. On the WL-QH04L (PLUS) the figures worth carrying into the next order are the 6520 mL tank, the 57.6 hours per fill on the low step, and the 28.1 dB reading on the sleep step.
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 0.163 cubic metres per master carton of 4 units, a 20 ft container takes about 130 cartons, or roughly 520 units, and a 40 ft container about 286 cartons, or roughly 1,144 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. We suggest one spare disc per twenty units on a first order and one cartridge per unit where the water is hard, and both ride in the same container as the appliances.
The third is the cost of a return. In this category the majority of returns come from mineral dust, not from malfunction, and the cartridge that prevents them costs a fraction of the return it avoids. For this configuration that means 113.1 mL per hour at 28.1 dB, holding 57.6 hours per fill across a 65 sq m (702 sq ft) room.
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-QH04L-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-QH04L are 30.8 dB on the high step and 28.1 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 bay in the tank neck, two cartridges included on the plus build.
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-QH04L, 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?
24 months against manufacturing defect on WL-QH04L. 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.
The programme suits any buyer who has to answer for the product after it is sold, which in practice means everyone except the pure spot trader. A distributor carrying a range needs to know which chassis to put in front of which customer, and the answer is usually decided by water hardness and by who refills the tank.
Hospitality buyers need a fill interval that fits a housekeeping round. Clinical and childcare buyers need a material declaration and a light that can be turned fully off. Facilities buyers need one unit per occupied room rather than one per floor, and they need the reasoning written down so it survives staff turnover.
What all of them have in common is that they are specifying against a room and a routine rather than against a specification sheet, which is why we ask about the site before we quote the unit. For this configuration that means 113.1 mL per hour at 28.1 dB, holding 57.6 hours per fill across a 65 sq m (702 sq ft) room.
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 113.1 mL per hour at 28.1 dB, holding 57.6 hours per fill across a 65 sq m (702 sq ft) room.
Two things decide whether this product works, and neither is on the box: whether the tank lasts the interval the site can actually service, and whether the unit can be cleaned inside the time a round allows. Get those two right and the rest of the specification rarely matters.
Everything else on this page exists to make those two decisions possible before money moves - the figures by model rather than by marketing tier, the measurement conditions stated next to the decibel, and the honest statement of where the answer depends on the room.
Enquiries are welcome from anyone supplying this category at volume, whether as an importer, a distributor, a brand owner, a facilities or hospitality group, or a cross-border seller. Samples and the full documentation set are available on request. The WL-QH04L (PLUS) packs 4 units to a carton, carries a 24 months warranty and a 25-35 days stated lead time, and draws 13.2 W on the high 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
