Does electronic smoke contain formaldehyde?
Not all e-cigarettes will produce formaldehyde in the process of use, but some of the player level devices that are respected by e-cigarette users will produce formaldehyde and other harmful substances. The principle of producing formaldehyde: eight kinds of volatile carbonyl compounds are produced by cracking of glycerol and propylene glycol. The main dissolving agent in electronic smoke is glycerol and propylene glycol. Under high temperature, these two substances will produce cracking reaction and generate formaldehyde, while most of the small smoke has insufficient heat to produce formaldehyde.