National standard GB 34914-2021 Minimum allowable value of water efficiency and water efficiency grades for water purifier took effect starting July 1, 2022. It applies to small water purifiers that use municipal tap water or other centralized water supply as raw water and use reverse osmosis membrane or nanofiltration membrane as the purification component to supply purified water for households and similar places.
China Household
Electrical Appliances Association
Date:Aug 17, 2022