The activated carbon filter improves the absorption of dirt and odors. Before use, the filter should be soaked and cleaned, after being plugged in for 1 hour, change the water to provide a healthy drink! 84oz/2.5L Upgraded Water Fountain for Cat Automatic Pet Water Dispenser with Replacement Filters and Silicone Mat The 2.5L / 84oz Large Capacity Pet Fountain is very sufficient to provide healthy watering service for small and medium-sized pets. Whether it is for home use or outdoor activities, the USB interface will be very convenient for you. The ultra-quiet pet water dispenser has a large piece of mesh sponge is placed on the water pump, which greatly reduces the noise of the pet. water flow rate (measured below 40dB), it won’t scare your pet to drink water, or disturb your sleep. filters should be changed every s 2 for 4 weeks, depending on the number of animals using the fountain.a
