I really like this unit. It’s sleek and pretty, and does what it says.I got it for two uses. I’m not able to take OTC medications for colds, and so I always steam my head with tea tree, eucalyptus, and peppermint essential oils - those are the expectorant oils - and they have a great decongestant effect, and clear my head wonderfully. In the past, I just used to put a saucepan of water on the stove, put drops of oil in, and put a towel around my head, and gasp and splutter as the steam went up mSee full review