Particulate respirators are the simplest, least expensive, and least protective of the respirator types available. These respirators only protect against particles. They do not protect against chemicals, gases, or vapors, and are intended only for low hazard levels.
A factory tow package usually includes heavy duty rear shocks/springs and an auxiliary transmission cooler in addition to the tow hardware itself, and sometimes they include a full size spare tire too. When a dealer installs it they just put on the hitch and wiring plug.
2017 Jeep Cherokee. The 2017 Cherokee has the highest towing capacity in the compact SUV class; it's rated to tow up to 4,500 pounds when equipped with the optional 271-hp V-6 and Trailer Tow Package. The package includes extra engine and transmission cooling and different final-drive gearing, among other things.