Air humidifier VS Air purifier VS Diffuser

The difference between humidifier and purifier from the functions:

Air purifiers are mainly used to purify indoor air, including formaldehyde, odor, dust, second-hand smoke, bacteria, mold, pollen, etc.

Dehumidifiers are mainly used to reduce or maintain the humidity of indoor air.

Some dehumidifiers have humidification functions that can regulate air humidity within a certain range.

The difference between humidifier and diffuser from the functions:

the aroma diffuser is mainly to add pure plant essential oils and pure water;

the aroma molecules are emitted through water vapor, and different essential oils have different effects.

The function of the humidifier, as the name suggests, is to humidify, and only clean water can be added,

and the humidifier can significantly better regulate the air humidity than the aroma diffuser.