How to Choose the Right Size
Selecting the right portable air conditioner or cooler depends on three main factors: room size, room type, and cooling method.
Step 1: Measure Your Room
Calculate your room's floor area in square metres (m²) by multiplying the length by the width. For irregularly shaped rooms, break the space into rectangles and add them together.
Step 2: Check Room Characteristics
- Large windows (especially south-facing) — add 20% to recommended BTU
- High ceilings (over 2.7m) — add 10% per extra 0.3m of height
- Conservatory or sunroom — add 30–50%
- Kitchen or office equipment — add 15%
- Poor insulation — add 20%
Quick Reference Table
| Room Size | Example | Recommended Model |
|---|---|---|
| Up to 16 m² | Small bedroom, study | ArcticBreeze Mini 7000 BTU |
| Up to 22 m² | Double bedroom, home office | ArcticBreeze 9000 BTU |
| Up to 30 m² | Living room, large bedroom | ArcticBreeze 12000 BTU |
| Up to 40 m² | Open-plan kitchen/diner | ArcticBreeze Dual Hose 14000 |
| Up to 50 m² | Office, retail space | ArcticBreeze Pro 18000 BTU |
| Personal use | Desk, bedside | CoolBreeze Desktop |
Compressor AC vs Evaporative Cooler
Compressor portable ACs provide real air conditioning — they lower the actual air temperature significantly. They require a window for the exhaust hose but are best for bedrooms and living rooms.
Evaporative coolers use water evaporation to create a cooling breeze. More energy-efficient and don't need an exhaust hose, ideal for conservatories and well-ventilated spaces.