Premium Filtration & Adjustable Filtration Speed Consisting of multi-layer filtration materials, such as Japan-made Activated Carbon (ACF), top class Ion-Exchange Resin, Micro Nets etc, TF900 countertop water filter dispenser is tested to effectively reduces CHLORINE, FLUORIDE, LEAD, HEAVY METALS, BAD TASTE & ODOR, Sediment, and other harmful contaminants from water, while retaining essential minerals. Water filtration speed can be adjusted by turning the dial on the cartridge bottom. Instant Heating in 3 secs Frizzlife TF900 hot water dispenser is capable of producing Heated & Filtered water in 3 secs, no need to wait. It actually combines the functions of water filter pitcher and water kettle in one compact system. Besides, instant heating technology ensures that only individual serve of water volume will be heated up each time. No repeat heating keeps your drinking water clean and fresh! 5 Temperatures & 3 Volumes Settings TF900 countertop hot water dispenser filter system has 5 kinds of temperatures adjustable (Room temp, 110 , 150 , 185 , 212 ), thus allows you to brew a variety of drinks that deliver best tastes, including but not limited to hot tea, coffee, baby formula, etc.