Instead, they estimate the number of smokers in the U.S., then they apply secret mathematical formulas based on comparisons between current, former and never smokers
The Smoke and Mirrors - Potential Effects of Smoking on Tints While your first thought might be burn marks, the impact of smoking goes beyond the obvious: Discolouration and Hazing : Over time, cigarette tar and resins build up on the tint film, causing it to lose its clarity and develop a yellowish hue
I understand that it is an addiction, however if other addictions get in the way of your work there are consequences that you will face
So does vaping stain walls
Other longer or bigger light wave lengths go right past the small smoke particles so they do not affect the tiny smoke particles
And nicotine dependency is every bit as real and permanent as alcoholism