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 Smoking and vaping don't affect your eligibility to donate. Become a donor and give life today. Smoking weed and plasma donation: are you eligible? Smoking (or vaping) doesn't affect your ability to donate blood. Help us bust this myth by sharing our post. Severe bleeding linked to synthetic cannabinoid use Texas Poison Center Network