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White polar-bear shaped ultrasonic humidifier, 9 by 7.5 by 11 inches

Sunpentown

Sunpentown SU-2031 Ultrasonic Humidifier 2.0L 450 sq ft

SKU CH-VP8A-NYZNX MPN SU-2031

Ultrasonic cool-mist humidifier with a 2.0 litre tank covers rooms up to 450 sq ft and runs 8 to 10 hours

  • Power draw21 W
  • Operates room size450 sq. ft.
  • Water tank2 liters
  • Power supply120 V / 60 Hz
  • Measurements9 inL × 7.5 inW × 11 inH
  • Product typeHumidifier
  • Silent ultrasonic operation keeps bedrooms peaceful
  • 0 L tank runs up to 10 hours without refill
  • Covers rooms up to 450 sq ft for whole-room comfort
  • Adjustable mist intensity lets you set the right humidity level
  • Auto shut-off protects the unit when water runs low

Adorable Polar Bear Design

The Sunpentown SU-2031 is a compact ultrasonic humidifier styled as a friendly Polar Bear. It is built for families who want to add moisture to a child's bedroom or a small living space. The unit runs on standard 120V / 60Hz household power and draws only 21W. Its white finish and 9"L x 7.5"W x 11"H footprint allow it to sit unobtrusively on a nightstand or shelf.

2.0L Tank with Auto Shut-Off

The 2.0 liter water tank provides cool mist output for roughly 8 to 10 hours before a refill is needed. Adjustable mist intensity lets you match output to the room conditions. Overflow protection and auto shut-off protection stop the ultrasonic generator when the tank runs dry, while the fan continues to run. No-slip feet keep the unit stable on smooth surfaces during operation.

450 sq ft Ultrasonic Coverage

Ultrasonic technology limits effective humidification to rooms up to 450 sq ft, making it unsuitable for large open-plan areas or whole-house use. The 120V / 60Hz power supply restricts operation to North American mains voltage without a transformer. Buyers needing continuous operation beyond 10 hours or coverage for larger spaces will find the tank capacity and rated room size restrictive.

How it compares

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

Price $28.99
Cheaper than about 80% of the 21 comparable items (median $40.99).

Specifications

Product
Brand nameSunpentown
Model nameSU-2031
Product typeHumidifier
Product colorWhite
Power
Power draw21 W
Power supply120 V / 60 Hz
Size & build
Operates room size450 sq. ft.
Measurements9 inL × 7.5 inW × 11 inH
Product weight5 lb (2.27 kg)
Shipping weight2.72 kg
Package size279 × 267 × 216 mm
Environment & compliance
Water tank2 liters

Questions about this item

How often does the 2.0-litre water tank need refilling during continuous use?

The ultrasonic humidifier runs for 8 to 10 hours on a full tank before the auto shut-off activates, so expect to refill roughly once per night or workday.

What component stops first when the unit runs low on water?

The ultrasonic generator shuts off automatically for protection while the fan continues running, signalling that the tank is empty.

How much heat or noise does the 21 W ultrasonic unit add to a bedroom running all day?

At 21 W power draw the mist stays cool and operation is silent, so the humidifier adds negligible heat and no audible disturbance during extended use.

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