The oil well and jet have gone through an anodizing color process that is similar to ceramic coating, which prevents the oils from coming in contact with the aluminum. You only need enough oil for the mist to start coming out through the top of the nebulizer. You may also place the bottle of essential oil upside down in the well located next to the nebulizer. Always check first to make certain that the plastic drop reducer is in the bottle opening. The oil mist output may be regulated by using the control knob located on top of the pump.
Different oils have different viscosity or thickness and therefore diffuse at different speeds.
For example, to diffuse one bottle of Valor could take up to 48 hours or longer with the pump running continuously on high volume, which is unnecessary and wastes a lot of oil. Thinner Blends such as Citrus Fresh, Peace and Calming, R.C., Purification, Abundance, ImmuPower, and single oils such as Lavender, Orange, and Lemon are thinner oils and diffuse very quickly. For example, a bottle of Citrus Fresh will diffuse within eight hours. A bottle of thicker oil can be left upside down in the well as it will diffuse slowly. However, with thinner oils, it would be better to put the desired amount of oil into the well so as not to use the entire bottle.