Types of humidifiers
Evaporative Humidifiers
In evaporative humidifiers mist is produced by blowing water through a wet pad or wick filter with the use of a fan. The mineral dust and bacteria get trapped on the filter before the water evaporates into the air.
+Wick filter ensures a pure and clean mineral-free moisture output.
+Fans can be powerful enough to cover large areas with a single humidifier.
+Very low power consumption.
-Fans make more noise than other types of humidifiers (noise level depends on fan speed).
-Bacteria and mold can grow on wick filter (may be reduced by using a bacteria treatment water additive).
-Most wick filters need to be replaced approximately every 2 months
Impeller Humidifiers
In impeller humidifiers there is a fan which blow water through a diffuser and as a result it produces fine droplets. In contrast to evaporative humidifiers there is no filter.
+ Quiet operation.
+No filters to replace.
+ Low power consumption.
+These humidifiers are cheaper than evaporative humidifiers.
-Bacteria is spread in the air along with the mist.
-White dust as a result of scattering the minerals present in the water (to prevent this, one can use distilled or de-mineralized water instead of regular water to fill them up)
- Limited to small rooms only.
Ultrasonic Humidifiers
Ultrasonic humidifiers use high-frequency vibrations to dissipate water into the air.
+Ultra quiet, near silent operation.
+Low power consumption (when using cool mist).
+No wick filters to replace.
- White dust as a result of scattering the minerals present in the water (to prevent this, one can use distilled or de-mineralized water instead of regular water to fill them up)
- Most units are limited to small rooms only.
Warm Mist Humidifiers
These humidifiers heat the water and expel steam into the room.
+ Quiet operation.
+ Pure, clean mineral-free moisture output.
+ No filters to replace.
- Higher power consumption (heating element uses more electricity than other humidifiers).
- Limited to small rooms only.
