How often do I need to change the cotton pad?

If you are using the same essential or aroma oil over and over again, there is no need to change the cotton pad. If you are always changing fragrances, we recommend to replace the pad for every new essential oil you are using. To purchase more cotton pads check out our online store at www.aromatechscent.com. Available in a 5 piece pack. Q: Where can I buy replacement cotton pads? AromaTech makes it easier for you to replace your cotton pads. Simply shop our online store at www.aromatechscent.com, and purchase your new 5 pack.