Product comparison · 2 humidifiers

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

11specifications compared
9differ
2identical
27known for one product only

Key differences

The Clean Air Optima CA-604B humidifier Ultrasonic 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-604B humidifier Ultrasonic has 6 h more timer duration (maximum) than the Sogo AIR-SS-21721 humidifier Ultrasonic (12 h vs 6 h). The Clean Air Optima CA-604B humidifier Ultrasonic has 55 mm more width than the Sogo AIR-SS-21721 humidifier Ultrasonic (215 mm vs 160 mm). Control type: Rotary, Touch on the Clean Air Optima CA-604B humidifier Ultrasonic, Buttons on the Sogo AIR-SS-21721 humidifier Ultrasonic. Product colour: Black on the Clean Air Optima CA-604B humidifier Ultrasonic, Brown on the Sogo AIR-SS-21721 humidifier Ultrasonic.

Water tank capacity
- CA-604B humidifier Ultrasonic:3.8 L
- AIR-SS-21721 humidifier Ultrasonic:0.4 L
Timer duration (maximum)
- CA-604B humidifier Ultrasonic:12 h
- AIR-SS-21721 humidifier Ultrasonic:6 h
Control type
- CA-604B humidifier Ultrasonic:Rotary, Touch
- AIR-SS-21721 humidifier Ultrasonic:Buttons
Product colour
- CA-604B humidifier Ultrasonic:Black
- AIR-SS-21721 humidifier Ultrasonic:Brown
Power supply type
- CA-604B humidifier Ultrasonic:AC
- AIR-SS-21721 humidifier Ultrasonic:DC
Width
- CA-604B humidifier Ultrasonic:215 mm
- AIR-SS-21721 humidifier Ultrasonic:160 mm
Depth
- CA-604B humidifier Ultrasonic:210 mm
- AIR-SS-21721 humidifier Ultrasonic:160 mm
Height
- CA-604B humidifier Ultrasonic:290 mm
- AIR-SS-21721 humidifier Ultrasonic:220 mm

Side by side

Differences highlightedShow differences only

Comparison of CA-604B, AIR-SS-21721
38 specifications	A Clean Air Optima CA-604B humidifier Ultrasonic Model CA-604B View product	B Sogo AIR-SS-21721 humidifier Ultrasonic Model AIR-SS-21721 View product
Technical details3 differ
Evaporation technology	Ultrasonic	Ultrasonic
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
Timer duration (minimum)	1 h	1 h
Timer duration (maximum)Differs	12 h	6 h
Control typeDiffers	Rotary, Touch	Buttons
Filter life (max)Known for one	3 month(s)	Unknown — not stated by the source
FilteringKnown for one	Yes	Unknown — not stated by the source
Humidification capacityKnown for one	400 ml/h	Unknown — not stated by the source
Ion emissionKnown for one	Negative ion	Unknown — not stated by the source
IonizerKnown for one	Yes	Unknown — not stated by the source
Removable filterKnown for one	Yes	Unknown — not stated by the source
Removable water tankKnown for one	Yes	Unknown — not stated by the source
Sleep modeKnown for one	Yes	Unknown — not stated by the source
Auto power offKnown for one	Unknown — not stated by the source	Yes
Compliance certificatesKnown for one	Unknown — not stated by the source	CE, RoHS
Operating timeKnown for one	Unknown — not stated by the source	12 h
TimerKnown for one	Unknown — not stated by the source	Yes
Warranty periodKnown for one	Unknown — not stated by the source	3 year(s)
Design1 differ
Product colourDiffers	Black	Brown
Built-in displayKnown for one	Yes	Unknown — not stated by the source
On/off switchKnown for one	Yes	Unknown — not stated by the source
Power1 differ
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 consumption (typical)Known for one	30 W	Unknown — not stated by the source
Power supply typeDiffers	AC	DC
PowerKnown for one	Unknown — not stated by the source	10 W
Featuresidentical
Connectable to internetKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	215 mm	160 mm
DepthDiffers	210 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

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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