Breathe comfortably in a moisturized home with the HUME Max Top Fill Humidifier from Pure Enrichment. With its true top fill design our ultrasonic humidifier takes the mess out of refills and at an almost 1-gallon capacity spends more time keeping your home at the ideal climate for up to 30 hours. Add an essential oil of your choosing to take advantage of the built-in oil diffuser and create a space luxuriously catered just for you.