National Non-Smoking Week is a yearly event in Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

. Since 1977, it continues to be observed on the third full week of January, starting on the Sunday. Coordinated by the Canadian Council for Tobacco Control

Canadian Council for Tobacco Control

The Canadian Council for Tobacco Control is a registered Canadian charity. It formerly existed as the Canadian Council on Smoking and Health...

, it aims to:

• educate Canadians about the dangers of smoking
  Tobacco smoking
  Tobacco smoking is the practice where tobacco is burned and the resulting smoke is inhaled. The practice may have begun as early as 5000–3000 BCE. Tobacco was introduced to Eurasia in the late 16th century where it followed common trade routes...
  
  ;
• prevent non-smokers from beginning to smoke and becoming addicted to tobacco
  Tobacco
  Tobacco is an agricultural product processed from the leaves of plants in the genus Nicotiana. It can be consumed, used as a pesticide and, in the form of nicotine tartrate, used in some medicines...
  
  ;
• help smokers quit
• promote the right of individuals to breathe air unpolluted by tobacco smoke;
• assist in the attainment of a smoke-free society in Canada. http://www.ncth.ca/NCTH_new.nsf/Docs/DirectLink~NNSWMainpage?OpenDocument#Background

Weedless Wednesday

The Wednesday of National Non-Smoking Week is termed Weedless Wednesday. Smokers are urged to refrain from smoking on this day. The intention is to kickstart the process of quitting smoking as well as gaining media coverage.