Common types of water treatment equipment used in laboratories are 1. Reverse osmosis (RO) system 2. Deionization (DI) system 3. Ultrapure water system 4. Distilled water machine 5. Activated carbon filter 6. Ultraviolet disinfector

Electrodeionization systems are also widely used in the pharmaceutical and biotechnology fields. In the pharmaceutical production process, water is an important raw material for the preparation of many drugs, so the requirements for water quality are extremely high.