Ultra Silent Pump: Our cat water fountain has ultra quiet pump which is super silent when running, keep it below 30db, the sound of water flow can hardly be heard, it will not affect your sleep at night even if it is placed in the room LED Light Shortage Alert: Our cat fountain has a pump that will turn off automatically when water level is too low to protect itself from burn out. LED light will turn red to alert you that it needs more water. (Blue light on during normal work) 3L Golden Capacity: The capacity of our cat drinking fountain is 3L/101oz. It can provide cats with 7 days' water consumption or small dogs with 3-4 days' water consumption, which is very suitable for families on short-term business trips Triple Filtration with Qualified Material: Our cat water bowl is made of high quality PP resin material and BPA free, which is qualified and durable. Also has dual-core triple layer filter, which can get rid of 99% impurities and provide clean and fresh water to cats and dogs. Rinse the cat fountain filter before use and replace them every 3-4 weeks Easy to Install and Clean: Our pet water fountain is designed with a simple quick release structure, which is easy to install and clean. It is necessary to clean the water pump and water fountain every 2 weeks in case that dog hair/debris might block the pump and cause malfunction