
A regularly used diffuser will inevitably stop working if it is not cleaned on a regular basis. Therefore you may cause it to run out of use and you may need to buy a new one. To avoid such unwanted problems, the key tip is to clean your diffuser with an effective cleaning material. Most of experts would recommend using vinegar.
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To clean your diffuser you will need a fair amount of distilled white vinegar and cotton swabs. Submerge the cotton swab in vinegar and clean the oil buildup accumulated inside of the diffuser.
Source: essentialoilsqueen.com