The purpose of the nationwide campaign is to encourage smokers to quit for a day and then, consider quitting for good.
The American Cancer Society says the use of tobacco is the single largest preventable cause of disease and premature death in the United States. Still, nearly 44 million Americans smoke cigarettes.
Health experts admit it's a hard habit to kick, but say the benefits of quitting start immediately. For example, within 12 hours of quitting, the carbon monoxide level in your blood drops to normal; after one year of not smoking, the excess risk of coronary heart disease is cut in half compared to that of a smoker's.
If you're a smoker and you want to quit, there are hotlines you can call for help. The number for the Cancer Society's "Quit for Life" program is 1-800-227-2345. You can also call the Washington State quit line at 1-800-QUIT-NOW.