No Essential Oil Reservoir

The humidifier works well. But, I was expecting a separate chamber or place to add essential oils, as this was listed as a diffuser and humidifier. The oil is added to the water tank and no info is provided on the max amount to use in the tank. Also, the plastic parts are thin. My husband broke part the fill cap rim off 3 days after we started using it. It still works, but likely won't make it to next winter.

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