Product comparison · 2 humidifiers

Clean Air Optima CA-604W SMART vs Sogo AIR-SS-21721 humidifier Ultrasonic

16specifications compared
11differ
5identical
24known for one product only

Key differences

The Clean Air Optima CA-604W SMART has 3.4 L more water tank capacity than the Sogo AIR-SS-21721 humidifier Ultrasonic (3.8 L vs 0.4 L). The Clean Air Optima CA-604W SMART has 6 h more timer duration (maximum) than the Sogo AIR-SS-21721 humidifier Ultrasonic (12 h vs 6 h). The Sogo AIR-SS-21721 humidifier Ultrasonic has 2 h more operating time than the Clean Air Optima CA-604W SMART (12 h vs 10 h). Warranty period: 2 year(s) on the Clean Air Optima CA-604W SMART, 3 year(s) on the Sogo AIR-SS-21721 humidifier Ultrasonic. Product colour: White on the Clean Air Optima CA-604W SMART, Brown on the Sogo AIR-SS-21721 humidifier Ultrasonic.

Water tank capacity
- CA-604W SMART:3.8 L
- AIR-SS-21721 humidifier Ultrasonic:0.4 L
Timer duration (maximum)
- CA-604W SMART:12 h
- AIR-SS-21721 humidifier Ultrasonic:6 h
Operating time
- CA-604W SMART:10 h
- AIR-SS-21721 humidifier Ultrasonic:12 h
Warranty period
- CA-604W SMART:2 year(s)
- AIR-SS-21721 humidifier Ultrasonic:3 year(s)
Product colour
- CA-604W SMART:White
- AIR-SS-21721 humidifier Ultrasonic:Brown
Power
- CA-604W SMART:30 W
- AIR-SS-21721 humidifier Ultrasonic:10 W
Power supply type
- CA-604W SMART:AC
- AIR-SS-21721 humidifier Ultrasonic:DC
Width
- CA-604W SMART:210 mm
- AIR-SS-21721 humidifier Ultrasonic:160 mm

Side by side

Differences highlightedShow differences only

Comparison of CA-604W SMART, AIR-SS-21721
40 specifications	A Clean Air Optima CA-604W SMART View product	B Sogo AIR-SS-21721 humidifier Ultrasonic Model AIR-SS-21721 View product
Technical details4 differ
Water tank capacityDiffers	3.8 L	0.4 L
Air purification capabilityKnown for one	Yes	Unknown — not stated by the source
Suitable for room area up toKnown for one	55 m²	Unknown — not stated by the source
Suitable for room volume up toKnown for one	140 m³	Unknown — not stated by the source
Automatic modeKnown for one	Yes	Unknown — not stated by the source
Timer duration (maximum)Differs	12 h	6 h
FilteringKnown for one	Yes	Unknown — not stated by the source
Humidification capacityKnown for one	400 ml/h	Unknown — not stated by the source
IonizerKnown for one	Yes	Unknown — not stated by the source
Noise levelKnown for one	25 dB	Unknown — not stated by the source
Operating timeDiffers	10 h	12 h
Relative humidityKnown for one	30 - 75%	Unknown — not stated by the source
Sleep modeKnown for one	Yes	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Warranty periodDiffers	2 year(s)	3 year(s)
Compliance certificatesKnown for one	Unknown — not stated by the source	CE, RoHS
Design1 differ
Control panel colourKnown for one	White	Unknown — not stated by the source
Product colourDiffers	White	Brown
Built-in displayKnown for one	Yes	Unknown — not stated by the source
Power2 differ
PowerDiffers	30 W	10 W
AC input frequencyKnown for one	50-60 Hz	Unknown — not stated by the source
AC input voltageKnown for one	220-240 V	Unknown — not stated by the source
Power supply typeDiffers	AC	DC
Weight & dimensions4 differ
WidthDiffers	210 mm	160 mm
DepthDiffers	215 mm	160 mm
HeightDiffers	290 mm	220 mm
WeightDiffers	2.8 kg	500 g
Package depthKnown for one	Unknown — not stated by the source	161 mm
Package heightKnown for one	Unknown — not stated by the source	223 mm
Package weightKnown for one	Unknown — not stated by the source	740 g
Package widthKnown for one	Unknown — not stated by the source	161 mm
Packaging contentidentical
QuantityKnown for one	1	Unknown — not stated by the source
ManualKnown for one	Yes	Unknown — not stated by the source
Manual languagesKnown for one	Czech, German, Dutch, English, Spanish, Estonian, French, LAT, Lithuanian, Polish, Romanian	Unknown — not stated by the source
Remote control includedKnown for one	No	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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