After three months of use, during which time both ultrasonic and steam models were available, I decided that I preferred the latter because it left no evidence of steam on the cleaned objects, never shut down on its own, and was incredibly reliable despite using the fewest possible moving components. Advantages that vary Adds a lot of moisture to the air in a healthy way. Calm, smartphone-controlled (not that anything would have changed much without it). Several Drawbacks More information is available on the network, as are potential preventative measures, such as how often one should wash and lubricate.
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