Canadian Lung Association logo
Print Page

8 hours

The positive effects on the body after being smoke free for 8 hours 1

  • carbon monoxide level drops in your body.
  • oxygen level in your blood increases to normal.

 

Questions about your breathing?

Ask an expert.
1-866-717-2673 (English)
1-866-325-2673 (French)
(in Canada)

Research report