bol.comwhite sold by a third-party seller € 329
Delivery2 days
Returnsreturns through the seller, at least 14 days by law
Clean Air Optima CA-509Pro
Its CADR is not known yet, so it is not in our ranking.
Is the Clean Air Optima CA-509Pro right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, for the same room size where we have them.
Green is the best of these 3, also when they share the lead.
| This model Clean Air Optima CA-509Pro | Higher score, 28% cheaper Clean Air Optima CA-507 Best on 2 facts | Higher score, 21% cheaper Levoit Core 400S-P | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | € 329bol.com | € 237Expert best | € 259bol.com |
| Score | not in our ranking | best | |
| Rank | – | rank 1 of 5 for large rooms | rank 2 of 5 for large rooms |
| Customer rating | – | – | – |
| Room size | |||
| Room size same on all | large rooms | large rooms | large rooms |
| Size, noise and age | |||
| On the market since | – | – | June 2023 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Prices per shop
On 17 October 2026 the lowest price for the Clean Air Optima CA-509Pro is € 329 at bol.com, delivery to the Netherlands included.
All prices include VAT and delivery to the Netherlands. We may earn a commission when you buy through these links. It never changes our ranking.
bol.comwhite sold by a third-party seller 
Expertwhite € 329
Deliveryabout 1–2 days
Returns14-day returns, at your cost
* Shop abroad: delivery and VAT are our estimate. Returns are the shop's own terms, a marketplace seller sets its own. Tap a return term to read the shop's policy. Let your browser translate it.
Price history
Lowest price per day Tap a shop to hide or show its line.
Lowest since 17 Oct€ 329
Highest since 17 Oct€ 329
Price drops since 17 Oct0no drop seen yet
Clean Air Optima CA-509Pro specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Clean air delivery rate (CADR)400 m³/h
Room size we compare on33 m²
Power at the highest speed53 W
Cleaning performance 3 facts
- Clean air delivery rate (CADR)
How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster.
- 400 m³/h
- Room size we compare on
The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule.
- 33 m²
- Room size the maker claims
The room size the maker states. Makers use different rules, so we show it but never rank on it.
- 90 m²
Filter 3 facts
- HEPA filter class
How fine the filter is. True HEPA and H13 catch at least 99.97% of particles at 0.3 microns. HEPA-type is a weaker claim with no test behind it.
- True HEPA
- Filter layout
Whether the particle and carbon layers are one filter or separate ones. Separate filters let you replace only the part that is spent.
- One combined filter
- Activated carbon filter
A filter of activated carbon that takes out smells and some gases. It does not catch particles.
- yes
Noise and power 2 facts
- Noise at the highest speed
The sound level at the highest speed, as the maker measures it.
- 55 dB
- Power at the highest speed
The power the purifier draws at its highest speed.
- 53 W
Air quality sensing 2 facts
- Air quality sensors
What the purifier measures in the air. A particle sensor lets it speed up and slow down by itself.
- PM2.5, Temperature, Humidity
- Automatic mode
The fan speed follows the air quality the sensor reads.
- yes
Smart features and warranty 1 fact
- App control
- Wi-Fi
Build 1 fact
- Weight
What the purifier weighs. It counts most if you move it from room to room.
- 7.5 kg
Warranty and certification 2 facts
- Warranty
The warranty the maker gives in the Netherlands. Consumer law here stands apart from it and can last longer.
- 2 years
- Maker model numbers
- CA-509Pro Smart
Sources: Manual