If a person vapes, it does not disqualify them from donating blood. However, vapes can contain harmful chemicals that affect the blood, such as nicotine, propylene glycol, acetaldehyde, formaldehyde, diacetyl, heavy metals and benzene.
Although there is very little information available about the exact effects of vaping on blood donation, a 2018 study found that while vaping does not affect the overall quality of donated blood, it can increase the concentration of carboxyhaemoglobin (COHb) in the red blood cells.
Therefore, researchers do recommend that people do not vape within 12 hours before donating blood and wait at least 1 hour after donation before vaping.
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