[Noisy operation] Our cold fog humidifier only operates at 30dB, which is ultra quiet and you can hardly hear any sound. Whether you are sleeping or working, it will make you forget its existence and enjoy every breath.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.