Can You Donate Blood If You Are A Smoker? 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? Get Facts Here! The Sanctuary Cannabis Use and Blood Donation: Unmasking the Truth 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 Think you can't donate blood? Think again. Australian Red Cross Lifeblood