We all know smoking and vaping isn't great for your health. But it doesn't stop you from being a blood or plasma donor. Just make sure to wait one hour after donating Is Vaping Safe? It Can Cause Higher Risk of Heart Attack, According to a New Study. Cone Health Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Vaping, Venous Valves, and Vein Disease Can I Donate Blood? Common Blood Donation and Eligibility Questions Smoking (or vaping) doesn't affect your ability to donate blood. Help us bust this myth by sharing our post.