Quiet Portable Air Conditioner
Is there such a thing as a silent portable air conditioner? Some manufacturers would have you think their machines incorporate features such as “silent technology” or noiseless or low noise mode on portable air cons. However, if you take the trouble to read the fine print you will see something like “noise 53 dB” in the specification. (That’s not silent by the way.)
The quiet portable air conditioner
One notable exception is Coolzy-Pro, a tiny portable air conditioner invented in Australia. Used correctly in a bedroom, the apparent noise is around 44 dB on its low fan speed which makes it ideal for sleeping. There’s enough background noise for people who cannot sleep in silence, and not enough to disturb most other people.
Unlike most air conditioners, Coolzy is designed to be used with open windows to ensure fresh air circulates for better health and less risk of infection. Therefore, some background noise is important so that noises from outside don’t disturb sleep.
How much quieter is a Coolzy compared to other quiet portable aircons?
Most portable air conditioners on the market range between about 58 db and 68 db. For most people that’s too loud for a bedroom. Above 60 dB a conversation in the room may be difficult to listen to.
A few portable air conditioners are quieter, around 52 dB. Almost always, the machine noise has been reduced by using heavier components, so these machines typically weigh 32-34 kg, double the weight of Coolzy. That makes them anything but portable.
Even then, most people find it harder to sleep with sound in the bedroom above 50 dB.