Help humidify oxygen, a practical and essential accessory for oxygen generators. Easy to install and convenient to operate. Reusable design; if the oxygen generator is not used for a period of time, pour out the water in the humidification cup and clean it before reuse. Features large font minimum and maximum water level markings for easy operation. Made of quality plastic material, safe, eco-friendly, firm, and durable. Secure sealing with translucent design, compatible with various oxygen generators worldwide. Item Type: Oxygen Generator Humidification Cup Compatibility: Compatible with various oxygen generators including Turtle, Sysmed, Longfei, INVACARE, Kaiya, MED JOY, Ya Ao, Folee, MELING, YANGLIDE, O2box, YJT, YRK, and others Usage Instructions: 1. Use only pure water or cool boiled water; do not use tap water or hot boiling water. 2. Fill water to the middle of the two-line English letter scale on the humidification cup (do not overfill). 3. Replace water daily or every two days. If no oxygen flows after water replacement, check if the humidification cup is securely sealed. 4. Clean the holes in the humidification cup tube every two months using a toothpick. 5. If the oxygen generator is not in use for an extended period, empty the water from the humidification cup and clean it before next use. Type: B Color: White Material: PP Package Contents: 1 x Humidification Bottle 1 x Tube (30cm) Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3 cm.