Usage Tips:Help humidify oxygen, a practical and essential accessory for oxygen generator. Easy to be installed on oxygen generator, convenient to operate and use. Reusable , if the oxygen generator is not used for a period of time, please pour out the water in the humidification cup and clean it for use. Large font minimum/highest water marks, convenient for operation. Made of quality plastic material, safe and eco‑friendly, firm and durable. Easy sealing, translucent , suitable for various of oxygen generators and abroad. Item Type: Oxygen Generator Humidification Cup Fitment: Fit for various of oxygen generators and abroad Fit for Turtle Fit for Fit for Sysmed Fit for Longfei Fit for Fit for Fit for Kaiya Fit for MED JOY Fit for Ya Ao Fit for Folee Fit for Fit for YANGLIDE Fit for O2box Fit for YJT Fit for YRK, etc. Operation Use 1. Be sure to put pure water or cool boiled water, do not use tap water or hot boiling water; 2. Place the water in the middle of the two-line English letter scales of the humidification cup (not too much); 3. Replace the water once a day or two days. If you find that there is no oxygen after the water is replaced, please check whether the humidification cup is tight; 4. Use a toothpick to clear the holes in the humidified cup tube every two months; 5. If the oxygen generator is not used for a period of time, please pour out the water in the humidification cup and clean it for use. Type: B Colour: white Material: PP Package Contents: 1 * Bottle 1 * Tube (30cm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.