Boneco
Boneco W200 Air Washer
No longer sold by Boneco in the US Boneco's US site (boneco.us) now redirects to a page that does not exist, and its only store is a Swiss one selling 230-volt units in francs (October 2026). Shown for comparison; the figures here are for the US model as it was sold.
An air washer works by turning textured evaporator mats through a water bath: air passes over the wet surfaces, picks up moisture, and drops some dust on the way. The appeal is that the mats are washed rather than bought by the season - Boneco says they go in the dishwasher or the washing machine - though it does sell replacement mats. Boneco's technical data gives 350 grams an hour, which is 2.22 gallons a day and supports about 547 sq ft, so the 540 on the listing is one of the few coverage claims in this catalog that its own maker's output figure actually backs. The rest of the arithmetic is as plain: a 4.5-litre bath, one silver stick a year, no filters, and about thirteen hours between fills if you are running it at the room it claims.
The room-size claim, reconciled
547 sq ft supported · box says 540 sq ft
The 540 sq ft on the box is what the winter load calculation supports for this output — one of 18 units here whose claim lands within 5% of its own published rate.
Holding 540 sq ft takes about 2.19 gal/day, which drains this 1.19-gallon tank in roughly 13 hr.
What a year costs
washable evaporator mats rather than a wick (Boneco sells AW200 replacement mats but states no interval); the Ionic Silver Stick is replaced annually at roughly $25. Electricity assumes the rated 20 W for 12 hours a day across a 150-day heating season at 16¢ per kilowatt-hour.
Specifications
A claim the maker makes
Boneco says the Ionic Silver Stick keeps the water hygienic through silver's antibacterial effect. We quote it rather than repeat it: this site has not tested it and neither has anyone independent.
Maintenance profile
- Top fill
- Yes
- Replaceable media
- None — nothing to buy
Facts, not a score. Which of these matter depends entirely on whether the unit ends up somewhere you will actually clean it.
Features
- Rotating evaporator mats in a water bath
- Mats and water base go in the dishwasher or washing machine
- Ionic Silver Stick water treatment
- Digital humidistat with auto mode
- 20W
- Top fill
Pros
- Washable mats rather than a seasonal wick, so the largest ongoing cost of an evaporative mostly disappears
- The mats and water base go in the dishwasher or washing machine, a far better clean than any wick ever gets
- 20 watts is nearly nothing to run all winter
- The only part with a stated yearly replacement is the silver stick
Cons
- Thirteen hours to a bath at the rate Boneco publishes, so a genuinely dry house means filling it daily
- Washing the mats is a bigger job than swapping a wick even if it is cheaper
- $250 for 2.22 gallons a day, when a $120 Vornado EVDC500 moves 3.5
- Air washers are slower to raise humidity than a wick-and-fan evaporative of similar size
The pros and cons above are drawn from the maker’s documentation and published specifications. There is not yet a body of owner reports for this model that we have read.
What owners say
No owner discussion collected for the Boneco W200 Air Washer yet. The pros and cons above come from the maker's documentation and published reviews, and this section will fill in when there is enough first-hand material to summarise honestly. We would rather leave it empty than invent it — how we compare explains why.
Boneco W200 Air Washer, head to head
Looked at alongside it
More from Boneco →
Swiss, expensive, and unusually straight about what it does: 3.17 gallons a day published, against a 650 sq ft claim that the load calculation puts at 780. A maker printing a number 17% below what its own output supports is doing something almost nobody else in this catalog does. It pairs a demineralisation cartridge with an Ionic Silver Stick for the water, so the two failure modes of a cheap ultrasonic - dust on the furniture, life in the tank - both have a specific countermeasure. The tank is only 5 litres, which at full output is about ten hours.
781 sq ft supported · box says 650 sq ft
Four gallons a day from a tabletop unit, which puts the U700 level with Vornado's Evap40 console on output while taking up a fraction of the floor. Its 1,000 sq ft figure lands within two percent of the load calculation - Boneco and Vornado both print numbers the physics backs up. Its nine-litre tank still lasts only fourteen hours at full tilt, which is the recurring lesson of this category: capability and refill interval trade against each other and no amount of marketing changes it. The self-cleaning mode is genuinely unusual at any price.
985 sq ft supported · box says 1,000 sq ft
Stadler Form
Stadler Form Oskar
A Swiss design-led cube that has been on sale, essentially unchanged, for over a decade - which in a category full of two-year model cycles is its own recommendation. Output is a published 1.9 gallons a day against a 540 sq ft claim; the load calculation supports about 470, so it overstates by fifteen percent, which is modest for this category. The tank is only 0.9 gallons, which at full output is about eleven hours. Eighteen watts at most, a real hygrostat, and a cube small enough to sit on a bookshelf.
468 sq ft supported · box says 540 sq ft