Clean Air Optima CA-503 Compact
No store we follow ships this model to the United States. This page says what it can do, and which similar robots you can buy here.
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Before you buy, compare it with 2 recommended alternatives
No store here sells this model today, so beside it the highest-scored model for the same room size that one does, and the cheapest of the top 10.
Green is the best of these 3, also when they share the lead.
| This model Clean Air Optima CA-503 Compact | Highest score here Levoit Core Mini-P Best on 2 facts | Cheapest of the top 10 Germ Guardian AC4825 | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | – | $44Levoit (brand store) best | $99Germ Guardian (brand store) |
| Score | not in our ranking | best | |
| Rank | – | rank 1 of 5 for small rooms | rank 4 of 5 for small rooms |
| Customer rating | – | – | – |
| Room size | |||
| Room size same on all | small rooms | small rooms | small rooms |
| Size, noise and age | |||
| On the market since | – | July 2023 | August 2024 |
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.
Clean Air Optima CA-503 Compact specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
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.
- 82 cfm (140 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.
- 126 ft² (12 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.
- 323 ft² (30 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.
- H13 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 3 facts
- Noise at the lowest speed
The sound level at the lowest speed, as the maker measures it.
- 10 dB
- Noise at the highest speed
The sound level at the highest speed, as the maker measures it.
- 50 dB
- Power at the highest speed
The power the purifier draws at its highest speed.
- 22 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
- 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.
- 4.2 lb (1.9 kg)
Extras 1 fact
- Ioniser
An ioniser charges particles so they settle. Some also make a little ozone, which is why a switch to turn it off matters.
- Can be switched off
Warranty and certification 2 facts
- Warranty
The warranty the maker gives in the United States.
- 2 years
- Maker model numbers
- CA-503B Compact Smart; CA-503T Compact Smart
Sources: Manual