Product comparison · 2 humidifiers

Clean Air Optima CA-603 humidifier Ultrasonic vs Clean Air Optima CA-604W SMART

31specifications compared
18differ
13identical
27known for one product only

Key differences

The Clean Air Optima CA-603 humidifier Ultrasonic has 1.2 L more water tank capacity than the Clean Air Optima CA-604W SMART (5 L vs 3.8 L). The Clean Air Optima CA-604W SMART has 10 m² more suitable for room area up to than the Clean Air Optima CA-603 humidifier Ultrasonic (55 m² vs 45 m²). The Clean Air Optima CA-604W SMART has 40 m³ more suitable for room volume up to than the Clean Air Optima CA-603 humidifier Ultrasonic (140 m³ vs 100 m³). Only the Clean Air Optima CA-604W SMART has automatic mode. Only the Clean Air Optima CA-604W SMART has sleep mode.

Water tank capacity
- CA-603 humidifier Ultrasonic:5 L
- CA-604W SMART:3.8 L
Suitable for room area up to
- CA-603 humidifier Ultrasonic:45 m²
- CA-604W SMART:55 m²
Suitable for room volume up to
- CA-603 humidifier Ultrasonic:100 m³
- CA-604W SMART:140 m³
Automatic mode
- CA-603 humidifier Ultrasonic:No
- CA-604W SMART:Yes
Control type
- CA-603 humidifier Ultrasonic:Rotary, Touch
- CA-604W SMART:Buttons
Humidification capacity
- CA-603 humidifier Ultrasonic:300 ml/h
- CA-604W SMART:400 ml/h
Operating time
- CA-603 humidifier Ultrasonic:50 h
- CA-604W SMART:10 h
Relative humidity
- CA-603 humidifier Ultrasonic:45 - 75%
- CA-604W SMART:30 - 75%

Side by side

Differences highlightedShow differences only

Comparison of CA-603, CA-604W SMART
58 specifications	A Clean Air Optima CA-603 humidifier Ultrasonic Model CA-603 View product	B Clean Air Optima CA-604W SMART View product
Technical details9 differ
Evaporation technology	Ultrasonic	Ultrasonic
Water tank capacityDiffers	5 L	3.8 L
Air purification capability	Yes	Yes
Suitable for room area up toDiffers	45 m²	55 m²
Suitable for room volume up toDiffers	100 m³	140 m³
Automatic modeDiffers	No	Yes
Timer duration (minimum)	1 h	1 h
Timer duration (maximum)	12 h	12 h
Humidity sensorKnown for one	Yes	Unknown — not stated by the source
Air particle sensorKnown for one	No	Unknown — not stated by the source
Air quality sensor(s)Known for one	No	Unknown — not stated by the source
HEPA filterKnown for one	No	Unknown — not stated by the source
Air filterKnown for one	No	Unknown — not stated by the source
Auto power off	Yes	Yes
Auto power on functionKnown for one	Yes	Unknown — not stated by the source
Child lockKnown for one	No	Unknown — not stated by the source
Continuous refillKnown for one	No	Unknown — not stated by the source
Control typeDiffers	Rotary, Touch	Buttons
Effective areaKnown for one	45 m²	Unknown — not stated by the source
Filter life (max)Known for one	3 month(s)	Unknown — not stated by the source
Filter materialKnown for one	Ceramic	Unknown — not stated by the source
Filtering	Yes	Yes
Height adjustmentKnown for one	No	Unknown — not stated by the source
Humidification capacityDiffers	300 ml/h	400 ml/h
Humidity output up toKnown for one	300 g/h	Unknown — not stated by the source
HygrometerKnown for one	Yes	Unknown — not stated by the source
Ion emissionKnown for one	Negative ion	Unknown — not stated by the source
Ionizer	Yes	Yes
Mist typeKnown for one	Cool	Unknown — not stated by the source
Night modeKnown for one	No	Unknown — not stated by the source
Noise level	25 dB	25 dB
Number of fan speedsKnown for one	3	Unknown — not stated by the source
Number of speedsKnown for one	3	Unknown — not stated by the source
Operating timeDiffers	50 h	10 h
Relative humidityDiffers	45 - 75%	30 - 75%
Removable filterKnown for one	Yes	Unknown — not stated by the source
Removable water tankKnown for one	Yes	Unknown — not stated by the source
Safety switchKnown for one	Yes	Unknown — not stated by the source
Sleep modeDiffers	No	Yes
Timer	Yes	Yes
Country of origin	China	China
Warranty period	2 year(s)	2 year(s)
Design2 differ
Control panel colourDiffers	Black	White
Product colourDiffers	Black	White
Built-in display	Yes	Yes
Power2 differ
AC input frequencyDiffers	50/60 Hz	50-60 Hz
AC input voltageDiffers	220 - 240 V	220-240 V
Power consumption (typical)Known for one	30 W	Unknown — not stated by the source
Power supply type	AC	AC
PowerKnown for one	Unknown — not stated by the source	30 W
Weight & dimensions4 differ
WidthDiffers	150 mm	210 mm
DepthDiffers	335 mm	215 mm
HeightDiffers	285 mm	290 mm
WeightDiffers	2.6 kg	2.8 kg
Packaging content1 differ
Remote control includedDiffers	Yes	No
QuantityKnown for one	Unknown — not stated by the source	1
ManualKnown for one	Unknown — not stated by the source	Yes
Manual languagesKnown for one	Unknown — not stated by the source	Czech, German, Dutch, English, Spanish, Estonian, French, LAT, Lithuanian, Polish, Romanian

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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