Ahh, ok. I would recommend that you do some research online about vaping and the dangers from it. It seems fairly clear from what I have read that there is no safe smoking of either cigarettes or e-cigarettes. What works for some, may not work for others as they search for an easy way to quit smoking. Nicotine is so very addictive, and cigarettes contain many dangerous chemicals in addition to the nicotine. Vaping has oily liquids in it's make up and can cause lipoid pneumonia and inflammatory lung issues. The risks seem to far outweigh the benefits involved in vaping. Vaping associated lung injury is a real consequence of inhaling the hot aerosol.
Are you trying to quit smoking, or just looking into vaping out of curiosity?