How do I know which to choose: warm or cold humidification? Choosing warm or cold humidification is based on your preference. Warm moisture tends to make the air in the room feel warmer due to the warm vapor being released into the air. In contrast, cool moisture generally has the opposite effect, causing the air to feel cooler. Therefore, if you live in a warm climate, you may prefer cool moisture; if you live in a colder climate, you may prefer warm moisture. With this ultrasonic humidifier, you can have both!
1.4-gal. fill-up lasts up to 72 hours (depending on conditions) in rooms up to 200 sq. ft. UL listed.