The tap water in the dormitory feels impurity, so I want to use 1200ml thermos cup after work and bring it back with bottled water from my unit. Burn it after work, and you will feel laughed at.

Pack a cup of cold water and cook it at home, so no one will laugh at you. In fact, this is not a long-term solution. We should solve the problem from the root. The quality of water is related to people's health. So, you can buy nothing, but the water quality must be determined. Now a small water quality terminal processor is installed on the faucet, which is very convenient to use. The water quality is better than some bottled mineral water, which has health care function. Compared with the spring water in Bama, it will cost you several years of dormitory money, and more than 2000 pieces of raw water can be drunk. Convenient disassembly and travel. If it is for health reasons, you can buy one. If it's to save money, just drink enough at work.