1、What is Vortopt countertop reverse osmosis water purifier? Vortopt countertop reverse osmosis (RO) water purifier is a device that uses reverse osmosis technology to remove contaminants from tap water. Reverse osmosis is a process that forces water through a semi-permeable membrane, which traps contaminants on one side of the membrane and allows clean water to pass through to the other side. Countertop RO water purifiers are usually compact in size and easy to install. They just need to be plugged in and once installed, you can start using them immediately. 2、What are the advantages of Vortopt UR02 reverse osmosis water purifier? (1)Installation-free, plug-and-play, with automatic flushing (2)4-stage reverse osmosis filtration system with a filtration level of 0.0001μm (3)7:1 pure wastewater ratio, low wastewater ratio, more water-saving (4)Smart display panel with filter replacement reminders (5)Ability to produce hot water with customizable temperature and water output. (6)7L lar