Looks like vegetable glycerine produces the least formaldehyde.
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Extremely impressive – 0.25 micrograms per 4 second draw, as opposed to a cigarette’s 75 micrograms per 4 second draw.
For those curious, the body does have ways of metabolizing formaldehyde to make it less dangerous. Exposure to large amounts is dangerous, but small amounts are manageable by the human body thanks to a little enzyme named Formaldehyde dehydrogenase.
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