Vaping Causes Immediate Effects on Vascular Function RSNA How to Quit Vaping: A Practical Guide Smoking (or vaping) doesn't affect your ability to donate blood. Help us bust this myth by sharing our post. 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 Marijuana? 2023 Guide to Cannabis Use & Donating Blood