The QUOOZ™ Lull holds 200 mL (6.8 ounces) of water adding only 3 to 5 drops of aroma essential oil. This allows the diffuser to run for 8 hours covering 300-square feet. The QUOOZ™ Rockano has the same specifications. The only difference is the appearance. Both are ultrasonic diffusers using water. Read about them both here.
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