Used for only 3 days. The box and all instructions are included. The cartridge is still usable. → When used twice a day to draw water (2L usage), the replacement目安 (guideline) is about 6 months. ❇︎ Instant purchase is welcome ❇︎ I am a non-smoker and do not have any pets. I live in a fragrance-free environment. I will take measures to prevent water damage when shipping. Please rest assured. Gaia Water 135 Walian Pot (With a cartridge equipped with ceramic balls processed with lactic acid fermentation powder, natural terahertz ore, and makomo, and activated carbon made from natural materials) Capacity: 1 liter, available in 7 colors. PFOA and PFOS can also be removed. High-performance pot-type water purifier