Okudake Eco Humidifier Mikuni Humidifier Chocotto Oasis Tower Pot Replacement Filter 27 Pink U50E-27 Eco Humidification Without Electricity An eco-friendly humidifier that uses no electricity, just pour water into the tank. Non-woven fabric filter with antibacterial and anti-mold treatment naturally vaporizes water. Combines the Japanese tradition of "origami" with the cut design of the filter. Natural vaporization means no worry of over-humidification. Cordless, so it can be used anywhere. Silent operation won't disturb sleep. Filter replacement目安: 1 season (3-6 months) Chocotto Oasis Tower Pot replacement filter. Recommended to replace every 1 season (3-6 months). Humidification amount = natural evaporation is more than 5 times the natural evaporation of a single cup of water. Compared to a single cup with a diameter of 52mm, under conditions of 20°C room temperature and 30% humidity. Brand new, unopened.