Essential CPAP Accessory: The HumidAir Water Chamber is a compatible replacement part for AirSense 10 and AirCurve 10 CPAP and BiPAP machines. It supports your CPAP therapy by delivering humidified air, which may help reduce common discomforts such as dry mouth and sore throat. Maintenance Tips: For optimal performance, clean the water chamber weekly using warm water and mild detergent. Do not wash in a dishwasher. Allow it to air dry completely in a cool, shaded area before reinserting into your device. Regular replacement every 3 to 6 months is recommended. Design Update Information: The original AirSense 10 water chamber featured a full metal base. The updated design includes a more compact, circular metal base plate, improving durability and functionality. Color: Clear Material: PVC Package Contents: 1 x HumidAir Water Chamber Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.