I smoked for 34 yrs , 2 packs a day. Today i no longer smoke because of the Blucigs! so you tell me how safe these are. I feel great! My cough completely went away and i can actually run without almost falling over! Amazing product! I still cant figure out why im not craving a cigarette or even wanting one and my last smoke was april 14th!! Amazing new intention! I went from high nicotine cartridges to medium , to low, and then to zero nicotine. It took about a month but completely off nicotine pain free! I rearly use my Blucigs today and if i lost it i wouldnt replace it. Amazing product....if you smoke..its a must buy! I inhaled over 4000 chemicals off one real cigarette for 34 yrs...and u ask me if Blucigs are more unsafe?? Give me a brake...i say its more like government dont want to loose millions in revenue off of both pharmacutical company and tobacco companies! I personally could care less if FDA ever approves. they let us smoke real cigarettes all these years and could of cared less about our health! I just know all them other quit smoking products dont work...for me and many others. The Blucig is working for MANY!