Air delivery systems and methods for a vehicle passenger compartment

Apparatus, comprising:

• an all-terrain vehicle (ATV) including an open passenger compartment;
• a roll cage comprising an openwork of structural tubing built around the open passenger compartment for protecting an occupant of the open passenger compartment and other than the roll cage the open passenger compartment is not enclosed, being open to the atmosphere, enabling ambient air from the atmosphere to rush through the open passenger compartment, the roll cage further including an air inlet to the roll cage, an outlet, and an airflow pathway through the structural tubing coupling the inlet to the outlet in gaseous communication;
• the inlet coupled in gaseous communication to a filtered breathing air source via a first conduit, wherein the filtered breathing air source comprises an air pump;
• the outlet coupled in gaseous communication to a helmet via a second conduit;
• and
• the filtered breathing air source configured to convey filtered breathing air suitable for breathing through the first conduit to the inlet and through the airflow pathway through the structural tubing from the inlet to the outlet and from the outlet through the second conduit to the helmet, and the helmet configured to deliver the filtered breathing air to the occupant when the occupant is in the open passenger compartment and is wearing the helmet when the ambient air is not favorable for breathing.

A method, comprising:

• providing a roll cage for an open passenger compartment of an all-terrain vehicle (ATV) comprising an openwork of structural tubing configured to extend around the open passenger compartment for protecting an occupant of the open passenger compartment and other than the roll cage the open passenger compartment is not enclosed, being open to the atmosphere, enabling ambient air from the atmosphere to rush through the open passenger compartment, when the roll cage is connected to the ATV, the roll cage further including an air inlet to the roll cage, an outlet, and an airflow pathway through the structural tubing coupling the inlet to the outlet in gaseous communication;
• coupling the inlet in gaseous communication to a filtered breathing air source via a first conduit, wherein the filtered breathing air source comprises an air pump;
• coupling the outlet in gaseous communication to a helmet via a second conduit;
• and
• the filtered breathing air source configured to convey breathing air suitable for breathing through the first conduit to the inlet and through the airflow pathway through the structural tubing from the inlet to the outlet and from the outlet through the second conduit to the helmet for enabling the helmet to deliver the breathing air to the occupant when the occupant is in the open passenger compartment and is wearing the helmet when the ambient air is not favorable for breathing.

A method, comprising:

• providing an all-terrain vehicle (ATV) including an open passenger compartment and a roll cage comprising an openwork of structural tubing built around the open passenger compartment for protecting an occupant of the open passenger compartment and other than the roll cage the open passenger compartment is not enclosed, being open to the atmosphere, enabling ambient air from the atmosphere to rush through the open passenger compartment, the roll cage further including an air inlet to the roll cage, an outlet, and an airflow pathway through the structural tubing coupling the inlet to the outlet in gaseous communication;
• coupling the inlet in gaseous communication to a filtered breathing air source via a first conduit, wherein the filtered breathing air source comprises an air pump;
• coupling the outlet in gaseous communication to a helmet via a second conduit;
• and
• the filtered breathing air source configured to convey breathing air suitable for breathing through the first conduit to the inlet and through the airflow pathway through the structural tubing from the inlet to the outlet and from the outlet through the second conduit to the helmet for enabling the helmet to deliver the breathing air to the occupant when the occupant is in the open passenger compartment and is wearing the helmet when the ambient air is not favorable for breathing.