As a college student, smoking is a bad phenomenon, and smoking in the dormitory is not just a person living in the dormitory. If many roommates smoke in the dormitory, it will also affect the rest of other roommates.

Introduction to smoking:

Smoking is harmful, not only to human health but also to society. As long as there are signs of life, any organized organism must breathe, exhale carbon dioxide in the body, inhale oxygen in the air, and carry out metabolism to maintain normal life activities.

Non-smokers can breathe a lot of fresh air every day; However, people who smoke regularly do not enjoy the benefits of nature. What they breathe in is not fresh air, but toxic gas polluted by smoke.