Making the World Better with Chemistry?

Using chemistry to mask odors is one of the many tiny horrors of modern life.  There are people who plug room “fresheners” into their outlets, so as to emit a gas that covers up the smell of mildew or whatever else is making their house smell like a men’s locker room or a bathroom at a bus station.

How about identifying the culprit and removing it?  That, btw, is what deodorant does; it works by killing the bacteria whose metabolic processes give off foul smelling gases.

The pic here is what made me think of all this.  Can you imagine being inside this guy’s car?