Nicotine and other chemicals can settle on dust and soft surfaces, contributing to ongoing contamination and making the odour even harder to remove
You can learn more about using an air purifier here
Morris Coats, A Note on Estimating Cross-Border Effects of State Cigarette Taxes, National Tax Journal 48:4, (December 1995), 573-584, Mark Stehr, Cigarette tax avoidance and evasion , Journal of Health Economics 24:2, (March 2005), 277-297, [4] Shu Wang, David Merriman, and Frank Chaloupka, Relative Tax Rates, Proximity, and Cigarette Tax Noncompliance: Evidence from a National Sample of Littered Cigarette Packs, Public Finance Review 47:2 (March 2019), 276-311
"It's early days but so far it seems that these devices are already helping tens of thousands of smokers to stop each year."
Occasionally there may be a difference
Reading For those of you with an in-depth interest in this topic, here's a list of further reading: Effects of Nicotine: CASAA.org Effects of Nicotine on Pregnancy Induced Hypertension: Dowling et al Effects of Smoking Cessation on Changes in Blood Pressure and Incidence of Hypertension Duk-Heel et al Ambulatory 24-h Blood Pressure Monitoring in Healthy, Middle-Aged Smokeless Tobacco Users, Smokers, and Nontobacco Users: Bolinder
