They are PVs
I researched here first, bought models well-supported by multiple vendors, found juices I love, and it's better than smoking. I smoked over 30 years and switched immediately to vaping even when my equipment was a bit weak. Within the month I bought the better models and I am still finding some juices I really like a lot. Once I got over needing tobacco juices (after about 2 months for me) then I could really have fun with flavors. I am vaping dark dark chocolate, vanilla, peach, butter rum caramel.
I got a lot of benefits from vaping. My cheeks are pink, my nails and teeth look better, food tastes better, I can breathe better and my sinuses cleared up. I can vape in the car and at my desk at work. It's great.