YES, you can donate blood if you smoke or consume cannabis. Let's break the stigma! , All donors go through the same health screening. All blood donations are tested for several types of infections, Vapes FRANK 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 Can You Donate Plasma If You Smoke Weed? My Marijuana Cards Can You Donate Blood If You Smoke? What You Should Know Dr. Karuna Kumar Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center