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Best picks
For a compact evaporative cooler, the Trotec PAE 21 is the clearest small-room pick in this comparison; the PAE 22 adds a different design, while the electriQ AC100R-V2 offers a 5.5-litre tank.
Quick answer
The Trotec PAE 21 is the most compactly documented option here, with a 6-litre tank and manufacturer-stated 276 m³/h airflow. Choose the PAE 22 if you prefer its design and 330 m³/h stated airflow, or the electriQ AC100R-V2 for a slightly smaller 5.5-litre tank and documented 300 m³/h flow. These are evaporative coolers, so room ventilation and added humidity matter.
Official manufacturer image
Best for a compact, clearly specified unit
Drawback: Its stated room guidance is limited to 24 m² / 60 m³, and the product page availability can change.
Official manufacturer image
Best for a design-led compact option
Drawback: The manufacturer page marks the model sold out at the time checked.
Official manufacturer image
Best for a mid-size water tank with documented airflow
Drawback: The manual’s stated maximum noise is 62 dB, so it may not suit noise-sensitive use.
| Official manufacturer imageTrotec PAE 21 | Official manufacturer imageTrotec PAE 22 | Official manufacturer imageelectriQ AC100R-V2 | |
|---|---|---|---|
| Water tank | 6 l | 6 l | 5.5 litres |
| Airflow | 276 m³/h | 330 m³/h | 300 m³/hr |
| Room guidance | Up to 24 m² / 60 m³ | Up to 24 m² / 60 m³ | — |
| Power | 50 W | — | 58 W |
| Cooling type | Evaporative | Evaporative | Evaporative |
| Check price on Amazon UK | Check price on Amazon UK | Check price on Amazon UK |
Common questions
No. These models use evaporative cooling, which adds moisture and does not vent hot air through an exhaust hose like a portable air conditioner.
The Trotec PAE 22 is listed at 330 m³/h, compared with 300 m³/hr for the electriQ AC100R-V2 and 276 m³/h for the PAE 21. Airflow figures alone do not establish room performance.
Check the manufacturer’s room guidance and the room layout. A compact unit may be intended for a limited space, and evaporative cooling works best with suitable ventilation.
Yes, evaporative coolers add moisture to the air. Consider indoor humidity and follow the model’s operating instructions.
Keep exploring
A portable air cooler can mean an evaporative unit, a fan or a portable air conditioner in shopping results. Identify the cooling method before choosing a model.
A portable air cooler unit must be practical to live with. Measure its position, plan water access and read the cleaning routine before focusing on extra modes.
A portable air cooler is not automatically an air conditioner. Check whether the appliance evaporates water, simply moves air or uses a refrigeration system.
The best portable air cooler is one that suits the room's humidity and ventilation. Compare these real evaporative models only after confirming that this cooling method meets your needs.