Clean Air Optima CA-503B Compact Smart

Name: Clean Air Optima CA-503B Compact Smart
Brand: Clean Air Optima
SKU: 946956
Price: 139 EUR
Availability: InStock
Rating: 7.3 (3 reviews)

Review is 7,3 out of 10, based on 3 reviews.
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Product information
Reviews
Accessories
Extended Warranty
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Specifications

Product information

Key specs

	Cleaning technology	Filters and Ionization
	Max surface to be cleaned according to Coolblue test	28 m2
	Air quality sensor
	Humidifier
	Night mode
	Maximum area to be cleaned in case of allergy	16 m2
	Maximum area to be cleaned with asthma	11 m2
	Maximum noise level	50 dB

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Pros and cons

According to our air purifier expert

The built-in UV-C lamp kills harmful bacteria, viruses, and fungi.
As soon as the air purifier measures a change in the air quality, it adjusts its operation with the automatic mode.
With the app, you can also control the air purifier remotely or when you're not home.
This air purifier is only suitable for smaller rooms of up to 28m2.
You need to regularly replace the air purifier filters for the best result.

Description

The Clean Air Optima CA-503B Compact Smart filter kills bacteria, viruses, and fungi. This is because the air purifier has a UV-C lamp, which kills harmful bacteria, viruses, and fungi. With the HEPA 13 filter, it removes dust, allergens, and other particles from the air. The ionizer lowers floating particles to the floor. The air purifier has a sensor that measures the air quality and it automatically adjusts its operation if it senses pollution. You can connect the air purifier to the smartphone app to control it remotely and to gain insight in the air quality. It cleans the air in rooms of up to 28m2. Thanks to the extra silent night mode, you can also use it in your bedroom.

Tips for using this product

Included by default

Manual(3.01 MB)

Reviews

Rating

5 stars

4 stars

3 stars

2 stars

1 star

Most helpful reviews

Review is 8,0 out of 10.

I am satisfied

Easy to use, exactly what I wanted.

Review by:
Chingiz
Date:
29 December 2025
Translation:
Automatically translated from Dutch

Review is 10 out of 10.

Very satisfied with it.

Filters TVOC and VOC
Can be controlled from phone
Automatic speed

I have several 3D printers and was looking for an air purifier that filters TVOCs and VOCs in addition to the "normal" ones. 3D printing can release unpleasant odors, especially with technical filaments, as well as other harmful fumes.

It's especially nice that you can control the purifier with your phone.

The automatic mode also works as expected.

Review by:
Mathijs
Date:
30 December 2025
Translation:
Automatically translated from Dutch

Review is 4,0 out of 10.

Disappointment regarding unpleasant odors

Easy to operate
Has little or no effect on unpleasant odors

Unfortunately, I'm disappointed with the air purifier. I bought it to eliminate unpleasant odors in my house, but I hardly notice any difference when it's running. I don't have allergies, so I have no idea if it has any positive effects on them.

Review by:
Anoniem
Date:
19 January 2026
Translation:
Automatically translated from Dutch

Coolblue Extended Warranty for your air purifier

With Coolblue Extended Warranty, you are protected against costs due to quality defects of your air purifier for the next 4 years. During the entire term, we will reimburse up to the original purchase price. You can easily add the Extended Warranty in your shopping cart.

During the entire term, we'll refund you up to the original purchase price.
Receive CoolblueCredit worth the purchase price if a repair or replacement isn't possible
No deductible or other additional charges
30-day return window

€ 15,99

one-time

How can I buy Extended Warranty?

Add your air purifier to your shopping cart. In the next step, you can add the Extended Warranty. You can exchange or return your purchase for free within 30 days.

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Max surface to be cleaned according to Coolblue test
- 28 m2
- 84 m2
- 42 m2
- 80 m2
- 50 m2

Maximum area to be cleaned in case of allergy
- 16 m2
- 48 m2
- 24 m2
- 46 m2
- 29 m2

Maximum area to be cleaned with asthma
- 11 m2
- 34 m2
- 17 m2
- 32 m2
- 20 m2

Maximum noise level
- 50 dB
- 45 dB
- 62 dB
- 56 dB
- 49,5 dB

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Specifications

Product

Product
	Product number	946956
	Manufacturer code	CA503BSmart
	Brand	Clean Air Optima
	Warranty	2 years
	Processing of your defect	Carry-in warranty

General properties

General properties
	Cleaning technology	Filters and Ionization
	Max surface to be cleaned according to Coolblue test	28 m2
	Maximum area to be cleaned in case of allergy	16 m2
	Maximum area to be cleaned with asthma	11 m2
	Clean Air Delivery Rate	140 m3/h
	Minimum noise level	10 dB
	Maximum noise level	50 dB
	Display
	Remote control

Filters

Filters
	EPA filter
	HEPA filter
	ULPA filter
	Type filter	HEPA 13: filters 99.95%
	Carbon filter
	Pre-filter

Extra functionalities air quality

Extra functionalities air quality
	Humidifier
	To be used as a fan
	Ionization function
	UVC function
	Heating function
	Automatic mode

User-friendliness

User-friendliness
	Night mode
	Air quality sensor
	Auto shut-off
	Child safety lock
	Number of settings	4
	Overheating protection
	Compatible with smartphone / apps

Physical properties

Physical properties
	Mobile
	Tiltable
	Adjustable airflow direction
	Color	Black
	Material	Plastic
	Finish	Matte
	Width	20,6 cm
	Depth	20,6 cm
	Height	27,4 cm
	Weight	1,89 kg

Power supply

Power supply
	Power supply type	Power grid

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Clean Air Optima CA-503B Compact Smart

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

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Clean Air Optima CA-503B Compact Smart

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