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White upright humidifier with rounded top, clear 3.5 L tank window, touch controls and 360-degree mist nozzle

Lasko

Lasko UH250 3.5 L Ultrasonic Humidifier

SKU CH-4MEF-WQJAR MPN UH250

A 3.5 L ultrasonic humidifier with a top-fill tank, adjustable 360-degree mist nozzle, three mist settings, programmable 7-hour timer, aromatherapy tray and nightlight

  • Water tank3.5 L
  • Timer and extrasProgrammable 7-hour timer
  • Product typeHumidifier
  • Easy cleaning and refilling with large removable top
  • Direct mist where needed using adjustable 360-degree nozzle
  • Set-and-forget operation via programmable 7-hour timer
  • Gentle illumination for night-time comfort with soothing nightlight
  • Add fragrance while humidifying using aromatherapy scent tray

3.5 L Top-Fill Humidifier

The Lasko UH250 is an ultrasonic humidifier with a 3.5 L water tank designed for indoor use. Its top-fill design allows refilling and cleaning without removing the tank from the base. Adjustable mist output suits bedrooms, offices or living areas.

Adjustable Nozzle and Timer

A 360-degree mist nozzle directs output away from walls or furniture. Three mist settings let users match humidity to room conditions. The programmable 7-hour timer shuts the unit off automatically for overnight or unattended operation.

Ultrasonic Operation Limits

Ultrasonic nebulisation produces a fine cool mist without a heating element. Mineral content in tap water can create white dust on nearby surfaces over time. Regular cleaning of the tank and transducer is required to prevent microbial growth and maintain output.

How it compares

Measured against everything we stock in Ultrasonic & Evaporative Humidifiers, at today’s prices. Recalculated every night.

Price $36.99
Cheaper than about 60% of the 21 comparable items (median $40.99).

Specifications

Product
Brand nameLASKO
Model nameUH250
Part numberUH250
Product typeHumidifier
Size & build
Shipping weight2.72 kg
Package size356 × 279 × 229 mm
Environment & compliance
Water tank3.5 L

Questions about this item

How often does the ultrasonic transducer need descaling?

The removable top and 3.5 L tank allow regular vinegar cleaning of the transducer and nozzle to prevent mineral build-up.

What stops the unit from running continuously?

The 3.5 L water tank limits run time; the humidifier shuts off automatically when the tank is empty.

How much noise does the nightlight add when the humidifier runs all day?

The nightlight is a passive LED that adds no audible noise during continuous operation.

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