Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center Vaping cannabis associated with cough, bronchitis and wheezing, study finds CNN Donating blood with COPD: What to know Smoking (or vaping) doesn't affect your ability to donate blood. Help us bust this myth by sharing our post. 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 CBD Cannabis and voluntary blood donations: what is the rule? Justbob