Luna G3 Replacement Water Chamber Streamlined Refilling: The intuitive “press-and-fill” design allows you to top off your water levels quickly, helping you get back to sleep faster. Maximum Hydration: Efficiently converts water into soothing moisture to eliminate the dry mouth and nasal irritation often associated with CPAP therapy. Airtight Performance: Custom-fitted seals ensure a perfect, pressurized connection to your G3 unit, preventing whistling sounds or air pressure loss. Durable & Transparent: Crafted from rugged, clear materials that allow for easy inspection of water levels and mineral buildup, ensuring you always know when it’s time to clean. Optimal Hygiene: Swapping out your reservoir regularly is the best way to prevent stubborn limescale and ensure the air passing through your machine remains fresh. Documents When to Replace your CPAP Parts