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White rectangular tower humidifier with LCD panel and 3.7L water tank

Sunpentown

Sunpentown SU-9210 Digital Evaporative Humidifier 3.7L

SKU CH-S340-XWWW5 MPN SU-9210

Evaporative humidifier with digital humidistat adjustable from 35% to 85% humidity, 3.7 L tank, filter dirtiness indicator, and 25 W power draw

  • Power draw25 W
  • Water tank1 gallon (3.7 liters)
  • Power supply120 V / 60 Hz
  • Measurements8.82 W × 13.86D × 11.18H inches
  • Product typeHumidifier
  • Key featuresEnjoy a comfortable living space with this cool-air evaporat
  • Precise humidity control with digital humidistat from 35% to 85%
  • Filter traps minerals preventing white dust in the room
  • 7 L tank runs up to 10 hours on timer
  • Low 25 W power draw on 120 V 60 Hz supply
  • Anti-bacterial wood slurry wick with honeycomb structure for quick absorption

Cool-Air Evaporative Humidifier

The Sunpentown SU-9210 is a digital evaporative humidifier designed for residential rooms. It draws dry air through a moisture-laden wick filter that traps minerals before circulating cool, moist air back into the space. The 3.7 litre tank supports extended operation without frequent refilling. It suits homeowners seeking low-maintenance humidity control without white dust residue.

Humidistat Range and Water Consumption

The digital humidistat adjusts output between 35% and 85% relative humidity or runs continuously for maximum moisture. Water consumption is rated at .3 litres per hour, so runtime depends directly on the selected humidity target and fan speed. The unit operates on 120V 60Hz power and draws 25W during use. Buyers needing higher capacity or whole-home coverage will find the single-room output insufficient.

Filter Access and Maintenance

The wick filter uses an anti-bacterial wood slurry honeycomb structure that absorbs water quickly for efficient evaporation. An LCD panel includes a filter dirtiness indicator to signal when replacement is needed. Accessing the filter requires opening the main housing, which is straightforward but must be done regularly to maintain performance. Users who neglect filter changes will see reduced output and potential mineral buildup despite the filter design.

How it compares

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

Price $46.99
Pricier than about 60% of the 21 comparable items (median $40.99).

Specifications

Product
Brand nameSunpentown
Model nameSU-9210
Product typeHumidifier
Power
Power draw25 W
Power supply120 V / 60 Hz
Size & build
Measurements8.82 W × 13.86D × 11.18H inches
Product weight5.55 lb (2.52 kg)
Shipping weight3.18 kg
Package size382 × 323 × 287 mm
Environment & compliance
Water tank1 gallon (3.7 liters)

Questions about this item

Is the 3.7-litre tank the only capacity available for the SU-9210?

Yes, the SU-9210 is supplied with a single 3.7-litre (1 gallon) water tank and no other capacity options are offered.

What does the 0.3 L/hr water consumption mean for daily refilling?

At maximum output the unit uses 0.3 litres each hour, so a full 3.7-litre tank lasts roughly twelve hours before it needs refilling.

What does the 120V 60Hz power supply limit in practice?

The humidifier runs on standard North American 120-volt 60-hertz mains power and draws 25 watts, so it plugs into any ordinary household outlet without special wiring.

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