The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs. There, in very small air sacs called alveoli, oxygen is brought into the bloodstream and carbon dioxide is pushed from the blood out into the air.
And, just to clarify, the kitty litter in your trunk, to be used for traction, needs to be taken out and spread around your tires. Most cars are front wheel drive, so the extra weight alone in the back ain't gonna do you much good.
The waste drawer contains a carbon filter to help control odor. The Litter Robot Bubble works with clumping cat litter and you can place any plastic bag in the drawer to contain the waste. If you use trash bags the best size is 13 gallon, although 8 gallon works fine as well.