The “Could” in the headline stems from the fact that e-cigarettes have settings, and if you set them to “high voltage”, they’ll give you a big dose of formaldehyde.
E-cigarettes Could Release 15 Times More Formaldehyde Than Tobacco

The “Could” in the headline stems from the fact that e-cigarettes have settings, and if you set them to “high voltage”, they’ll give you a big dose of formaldehyde.
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