No air filters on the street?

I figure your average Joe inhales bout 5 cubic inches of air per breath. Bout 20 breathes per minute. 60 minutes a hour. 24 hours a day. That's about 144000 cubic inches. A totally relaxed day. Me thinks I should get an air cleaner.....
At 65 My air cleaner is built-in. Every Friday I have to clean it out, and extract about 50% of the longest soup-strainers , and then it's on to the mustache.