Best ValueTristar AT-5445
The £59 workhorse Britain keeps re-ordering.
- 3 speeds + swing mode for wide coverage
- Castor wheels for room-to-room rolling
- 4.5L tank with two included ice packs
- Costs pennies an hour to run
Cards, Apple Pay, Google Pay & more — processed securely by Stripe. Delivery address collected at checkout.
13.4% slower reaction times (and 13.3% slower working-memory responses) measured in homes without cooling during a real heatwave, versus air-conditioned homes. Cedeño Laurent et al., PLoS Medicine, 2018
What does a cool night actually cost?
Tristar AT-5445 draws just 60W — about the same as an old lightbulb.
Based on 60W at 24.5p/kWh (uk avg). Your tariff may vary — it'll still be pennies.
- Tank capacity
- 4.5 L
- Airflow
- 720 m³/h
- Noise
- 55 dB (max)
- Power
- 60 W
- Height
- 62 cm
- Weight
- 5.4 kg
- Room size
- up to 18 m²
- Speeds
- 3 + sleep
- Timer
- 12 h
- Controls
- Remote & touch panel
Quieter than your conversation.
Quiet enough for TV evenings; sleep mode drops it lower.
What it actually does, in numbers.
per hour to run
based on uk avg electricity rates
| Water tank | 4.5L |
| Airflow | 720 m³/h |
| Noise | 55 dB |
| Power draw | 60 W |
| Height | 62 cm |
| Weight | 5.4 kg |
| Running cost | ~1p/hour |
| Covers rooms to | 18 m² |
Every spec on this page comes from the manufacturer's data sheet. We don't invent airflow figures or noise ratings — if a unit can't meet its claims, it doesn't go in the range.
