I used this for about a month, but I am selling it because I purchased an air purifier with a humidifying function. "Product Description" This is a hybrid type humidifier that combines both heating and ultrasonic methods. It efficiently humidifies by vaporizing heated water into mist. The main body uses resin mixed with silver-based inorganic antibacterial agents. Compared to products without processing, this achieves an antibacterial effect that reduces bacterial growth to less than 1/100th. It also suppresses slime and red mold, allowing for cleaner use. Reliable Antibacterial Treatment It uses antibacterial resin mixed with inorganic antibacterial agents and has obtained SIAA (Antibacterial Product Technology Council) certification.