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.
1 An RV with enough towing capacity for the car you plan to tow. Most contemporary RVs have more than enough power for this purpose. 2  A tow bar, preferably self-aligning, for easy one-person installation.  A supplemental braking system for the towed vehicle.