Name: Clean Air Optima CA-704 Smart
Brand: Clean Air Optima
SKU: 967723
Price: 279 EUR
Availability: InStock
Rating: 7.3 (3 reviews)

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Specifications

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Maximum surface to be dehumidified
- 40 m2
- 40 m2
- 30 m2
- 70 m2
- 40 m2
Maximum adjustable humidity
- 80 %
- 80 %
- 55 %
- 80 %
- 90 %
Mobile
- Yes
- Yes
- No
- Yes
- Yes

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Product information

Key specs

	Type of dehumidifier	Condensation dehumidifier
	Minimum working temperature	5 °C
	Maximum surface to be dehumidified	40 m2
	Integrated pump
	Drying program for laundry
	Night mode
	Humidistat
	Hygrometer

Show all specifications

Pros and cons

According to our dehumidifier expert

You can easily operate the dehumidifier from a distance with the useful smartphone app.
The carbon filter, the UV-C light, and the ionization function lower the humidity in the air and improve the air quality.
You can easily move the dehumidifier around, because it has wheels.
To drain the water, you always have to lead the condensation drain hose to a lower-level drain,

Description

You can easily control the Clean Air Optima CA-704 Smart remotely with the smartphone app. For example, you can use the app to turn on the dehumidifier when you're not at home and get insight into the air quality. This dehumidifier and air purifier in 1 improves the air quality with 4 filter technologies. For example, the carbon filter removes unpleasant odors. The ionizer causes dust particles floating in the air to become heavier and fall to the ground. In addition, the UV-C light kills bacteria, mold, and viruses. The colored light ring on the dehumidifier indicates the current humidity level. This device can dehumidify up to 10L per day, which makes it suitable for rooms up to 40m2. Thanks to the silent sleep mode, you can also use it in the bedroom.

Tips for using this product

Included by default

Manual(4.41 MB)

Reviews

Rating

5 stars

4 stars

3 stars

2 stars

1 star

Most helpful reviews

Review is 7,0 out of 10.

Does what it's supposed to do.

Not so big
Purifies the air
Makes too much noise to sleep with

It does what it's supposed to do: dehumidify and purify. The noise level is disappointing, as is the user-friendliness of the app.

Review by:
Fie
Date:
2 November 2025
Translation:
Automatically translated from Dutch

Review is 8,0 out of 10.

Satisfied

Does its job well
Easy to operate
Easy to set times and control remotely with app
Makes quite a bit of noise

So far, we're happy. There's plenty of water in the collection tank every day. It's great that you can set the timer via Wi-Fi. It's not too big and easy to use. The only downside is that it's a bit noisy, especially when the fan is running at full speed. That's why it's nice that you can set it or control it remotely when you're not there.

Review by:
evelien
Date:
13 November 2025
Translation:
Automatically translated from Dutch

Review is 7,0 out of 10.

Does its job with some noise, wifi function does not work

Does its job
Is compact
In itself easy to operate
Lots of noise

Does its job

Review by:
M.A.
Date:
10 October 2025
Translation:
Automatically translated from Dutch

Insure your dehumidifier

Coolblue takes care of everything, from taking out an insurance to repairs
For almost all accidents
More coverage in case of damage than your standard warranty
No deductible

How do I insure my dehumidifier?

First, add your dehumidifier to your shopping cart. On the next page, choose the Protection Plan below. You always have a 30-day return window and pay no deductible in case of damage.

5-year Protection Plan
29,99
one-time

Specifications

Product

Product
	Product number	967723
	Manufacturer code	CA-704 Smart
	Brand	Clean Air Optima
	Processing of your defect	Via Coolblue
	Old product returned for free

General properties

General properties
	Type of dehumidifier	Condensation dehumidifier
	Maximum room to be dehumidified	100 m³
	Maximum surface to be dehumidified	40 m2
	Maximum air flow	120 m3/h
	Minimum adjustable humidity	30 %
	Maximum adjustable humidity	80 %
	Noise level	42 dB
	Hygrometer
	Humidistat

Drain properties

Drain properties
	Integrated pump
	Drain hose
	Condensation drain hose included
	Drain hose length	1,5 m

Water tank properties

Water tank properties
	Capacity	4 l
	Removable water tank
	Water level indicator
	Full water tank indicator

Functionalities

Functionalities
	Ionization function
	Compatible with smartphone / apps
	Display
	Dimmable display
	Night mode
	Replaceable filter
	Timer
	Programmable schedule
	Overheating protection
	Drying program for laundry
	Suitable for drying paint

Power supply

Power supply
	Power supply type	Power grid

Physical properties

Physical properties
	Mobile
	Height	50 cm
	Depth	25 cm
	Width	25 cm
	Weight	9,5 kg
	Material	Plastic

This is the one

Clean Air Optima CA-704 Smart

Review is 7,3 out of 10, based on 3 reviews.

anything for a smile

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Clean Air Optima CA-704 Smart

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Clean Air Optima CA-704 Smart