All For Paws Lifestyle The Purefect Pet Water Fountain is a modern design, the Purefect water fountain fits in any home. It has a multi-layer filter to protect the water from any external pollution. The water fountain has two working modes: day mode, where the fountain constantly filters the water and guarantees the freshest water for your pet during the day. Night mode in which the filter is only activated from time to time, keeping energy consumption low and keeping the sound level at almost inaudible level. The switch between day and night mode is automatic, but can also be done manually.