Everything can affect the air quality in a car.  We live down the road from a lumber mill and it puts out some noxious fumes.  There was no relief no matter if we had the window opened or closed.  This Car Air Purifier fixed that.  I was impressed from the moment I opened the box it arrived in.  The box that the purifier came in was very nice, it would make a great gift box for jewelry.  The air purifier itself is very expensive looking.  I like that it has a light to tell when it is plugged in and working.  When my dad saw it he wanted to get another one right away for the car.  It is easy to use, pull it out of the box and plug it in.  It has helped the air quality in the truck tremendously.  I was so happy to be able to receive this product in exchange for my honest opinion.