8 Air Coolers to Avoid: What Could Hold You Back in 2025

4. Symphony Diet 3D 12i-High Running Costs and Noise-($187.8)

If you’re after long-lasting water capacity, the Symphony’s massive 12-liter tank certainly delivers. But that larger capacity comes with trade-offs: it’s noisier than many other models, especially when running at full power, which could be a problem if you’re sensitive to sound. It also consumes significantly more electricity—so don’t be surprised by a noticeable jump in your power bill. Despite its strong airflow for moderate-sized rooms, it’s not suited for large spaces or quiet environments. The added mosquito net and water-empty alarm are nice touches, but overall, you’ll need to be prepared for louder operation and higher costs to enjoy its cooling power.