>Vaping is not healthy but there is a lot less material inhaled. No fine particles which do real damage.

Propylene glycol covers the alvoelae and over time (~15-20 years) blocks uptake of oxygen, causing respiratory failure and a slow, painful death.

Vegetable glycerine coats the lungs and over time (~10-25 years) blocks fluid from draining out of the lungs, causing congestive heart failure/pulmonary edema. Which ends up causing one to drown in their own bodily fluids and a slow, painful death.

If you disagree, please cite any long term studies that disprove the above. Thanks!