E-cigarette liquids typically contain propylene glycol, which when heated is known to release formaldehyde gas. "Vaping" at high voltage also produced formaldehyde-containing compounds known as hemiacetals, the researchers found.

Does Hyde vape have formaldehyde in it?

Those chemicals include formaldehyde (For-MAL-duh-hyde) and acetaldehyde (AA-sit-AL-duh-hyde). Both are considered likely to cause cancer. Another toxic aldehyde — acrolein (Aa-KRO-LEE-un) — can severely irritate the eyes and airways. The Berkeley team used two current types of e-cigs and three different e-liquids.

How much formaldehyde is in a Hyde?

They found that vaping 3 milligrams of e-cigarette liquid at a high voltage can generate 14 milligrams of loosely affiliated or “hidden” formaldehyde. Researchers estimated a tobacco smoker would get .