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.
People who tow trailers share the same safety concerns as other RV drivers. 1  However, a tow vehicle and a trailer form an articulated (hinged) vehicle which presents an additional set of concerns. The weight considerations described on pages 30 and 31 are very important to safe towing. The tow vehicle must be a proper match for the trailer.