british tobacco cigarettes Packets of Rothmans made by American sit on the shelf of a retail store Stock Photo 1900 T440-16 British-American Tobacco Co.

If you have a fan or ventilator, turn it on to circulate fresh air

After saturation, the unit continues to capture particles and displays a clean filter reading because the HEPA portion is actually fine

You can reduce it by: only smoking with the windows open washing the inside of your windshield after each cigarette avoiding leaving cigarette butts in your car washing car seats and carpets with a solution of bleach and water, hydrogen peroxide and water, or white vinegar and water, at least once a week hosing down rubber mats with detergent keeping open containers of charcoal in the car Thirdhand smoke from cigarettes leaves a strong smell in the air, which may be more apparent and distasteful to nonsmokers

Compare that to the IQAir at $3,299 over the same period

Their primary function is to deodorize the air rather than scent it