Using the definition of smoke as seen in a dictionary:
the gas given off by burning materials (as coal, wood, or tobacco) made visible by particles of carbon floating in it
We can see that vape and e-liquid are not a burning of materials as identified in the definition. There is no burning that occurs in the process of vaping any e-liquid. It is vaporization which occurs and produces vapors.
When smoking, you are burning plant materials and smoke results. When vaping, you are heating up the coils and as a result the e-liquid vaporizes. It’s important to realize the difference as there are chemical changes that happen when things burn.
The more accurate term for what happens when vaping is that it produces aerosol(
a suspension of fine solid particles or liquid droplets, in air or another gas.)
The difference in odor in tobacco smoke and vaping is very different. Smoke’s smell linger in a room for very long periods of times.
Vaping’s aerosol(vapor) results in much thicker clouds that linger, but without the lingering smell that you get while smoking tobacco products or cigarettes.
Smoking indoors leaves residue in the room. You’ll find that walls, drapes, etc turn a dirty yellow when you’re smoking indoors often.
Vaping indoors doesn’t create this effect at all. What you will see happen though is a glossy texture on windows and different appliances(like computer monitors, tv’s etc) if you’re vaping often in the room without airflow. The moisture from the vapor clouds will stick to the surface. This is the only “residue” which will linger in the room, but it is easily wiped off any surfaces with a rag and won’t make anything turn into a dirty yellow color(or any other color for that matter).
The difference in vapor and smoke also comes in the temperatures at which they are inhaled and exhaled
Tobacco smoke from cigarettes generally is at 1,652* F when taking a puff out of your cigarette.
Vapor from your vapor device is generally heated to around 482* F, resulting in much cooler vapor leaving your mouth.