Why hasn't anyone picked up the popular water purifier? Is it an intelligence tax? What do people who have used it say

Why hasn't anyone picked up the popular water purifier? Is it an intelligence tax? What do people who have used it say

#Everything we see and get is very scientific#In recent years, the importance of health and wellness among Chinese people can be said to be increasing, and many people prioritize timingManufacturing sales anxietySaying that many things in life are harmful and carcinogenic, and then promoting one's own products for profit.Many people, especially those with elderly and children at home, are afraid to avoid things that may threaten their health,Even the water I drink every day is gradually worrying about not being safe enough...