How loud are air purifiers?
They are very comparable to the sound of a small house fan and that is a good comparison since most air purifiers use a small fan to move the air in an area. Most air purifiers loudest fan setting is set to equal the decibel level of normal human conversation. That is so, even at the highest fan setting, you do not have to talk over it if you are having a conversation in a room where the air purifier is set to a high fan speed. In most instances, the high setting is only going to be used for a quick cleaning of the air in a room and then placed on a medium or low fan setting to maintain the air quality in the room. The medium and low fan settings are usually no louder than Central Heating and Air Conditioning coming on through the vents inside of a dwelling. The lower settings (medium and low fan speeds) are similar in decibel level to “white noise” which is beneficial for concentration, relaxation, and better overall sleeping.
