Why did the FDA take this action
Lee S, Oh Y, Kim H, et al
The liquids include humectants that act as solvents to create a water aerosol or vapor, flavoring agents, cooling agents such as menthol and sweeteners, and metals from the heating coil, along with other chemicals

Specifications The 300 MAH battery provides the thickest vapor and richest flavor in the industry The cartomizers were created exclusively with premium, three-time distilled oils producing a rich flavor of vanilla while eliminating the thousands of toxins present in a traditional cigarette Each cartomizer supports up to 400 thick vapor puffs Each disposable e-cig is equivalent to up to two packs of traditional tobacco cigarettes (40 cigarettes) Powered by a long-lasting lithium battery that offers a smoother draw and thicker vapor with 40%-50% more power than industry standards Features a blue tip, as opposed to red, to alleviate negative attention or confusion during use Individually handmade and tested for quality before leaving Logic facilities Instructions Remove the cartomizer from packaging Remove two plastic end caps from each end of the small cartridge Twist the small cartridge onto the charged battery You are ready to experience the Logic smoking technology Recharge the battery when the blue light blinks Use a new cartomizer as needed Please Note: For use only with the Logic Power Series line of cartomizers

Fuzz pedals take the effect to logical extremes by forcing a sine wave signal into a brutal square wave signal, creating a wall of heavily distorted sound that can, if pushed, even obscure the original signal altogether