The U.S. Centers for Disease Control and Prevention (CDC) is finally weighing in on the formaldehyde conspiracy theory that has plagued the vaping industry for well over three years. According to the nation’s top public health agency, e-cig vapors contains no more formaldehyde than the normal, everyday air found in the average American home. In fact, many residences probably have much higher levels because formaldehyde can become trapped inside carpets, upholstery, curtains, and other textiles quite easily.