Method and apparatus for treating an inside volume of a mobile vehicle

1. A method of treating an inside volume of a mobile vehicle, the method comprising the steps of:

obtaining a treatment unit placed in an operative position with respect to the mobile vehicle, the treatment unit comprising:

a) a frame;

b) a source of UV light; and

c) an air mover for controllably directing air within the inside volume to be exposed to UV light rays generated by the UV light source,

the treatment unit changeable between first and second states;

operating the air treatment unit in the second state wherein surfaces within the inside volume are directly exposed to UV light rays from the source of UV light;

changing the air treatment unit from the second state into the first state by repositioning at least one part of the treatment unit so that the at least one part of the treatment unit strategically blocks UV light rays from the UV light source so that at least part of the surfaces directly exposed to UV light rays from the UV light source with the treatment unit in the second state are not directly exposed to UV light rays from the UV light source; and such that in the first state the frame defines a sub-volume through which air can circulate; and

operating the treatment unit in the first state wherein air directed by the air mover is disinfected by UV light rays from the UV light source and distributed within the inside volume.

2. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the air mover comprises at least one fan.

3. The method of treating an inside volume of a mobile vehicle according to claim 2 wherein with the treatment unit placed in the operative position the frame is mounted to a ceiling on the mobile vehicle.

4. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the mobile vehicle has at least one seat for an occupant and further comprising the step of operating the treatment unit in the first state with a person situated in the at least one seat so that the person in the at least one seat is not directly exposed to UV light rays from the UV light source.

5. The method of treating an inside volume of a mobile vehicle according to claim 4 wherein the at least one seat is a driver's seat and further comprising the step of operating the treatment unit in the second state with no person situated in the driver's seat so that the driver's seat is directly exposed to UV light rays from the UV light source.

6. The method of treating an inside volume of a mobile vehicle according to claim 5 further comprising the step of operating the treatment unit in the first state with the person in the driver's seat operating the mobile vehicle.

7. The method of treating an inside volume of a mobile vehicle according to claim 4 wherein with the treatment unit in the first state a predetermined part of the inside volume is strategically blocked from direct exposure to UV light rays generated by the UV light source.

8. The method of treating an inside volume of a mobile vehicle according to claim 1 further comprising the step of changing operating the treatment unit in the second state without any person situated in the inside volume.

9. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the treatment unit has on and off states and comprises a delayed start timer and further comprising the step of activating the delayed start timer to allow a person actuating the delayed start timer from within the inside volume to exit the inside volume before the treatment unit is changed from the off state into the on state with the treatment unit in the second state.

10. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the mobile vehicle comprises: a) a dashboard; b) a steering wheel; c) seat surfaces against which at least one occupant can be supported in a sitting position; and d) a peripheral wall surface bounding the inside volume, and with the treatment unit in the second state operating the treatment unit causes UV light rays generated by the UV light source to be directed against at least part of at least one of: i) the dashboard; ii) the steering wheel; iii) the seat surfaces; and iv) the peripheral wall surface.

11. The method of treating an inside volume of a mobile vehicle according to claim 10 wherein with the treatment unit in the second state, operation of the treatment unit causes UV light rays generated by the UV light source to be directed against at least part of each of: a) the dashboard; b) the steering wheel; c) the seat surfaces; and d) the peripheral wall surface.

12. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the mobile vehicle is an emergency vehicle with electronic emergency equipment with operating components exposed within the inside volume.

13. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the UV light source comprises at least one elongate bulb with a length and the step of operating the treatment unit comprises causing the air mover to move air in a flow path lengthwise of the at least one elongate bulb.

14. The method of treating an inside volume of a mobile vehicle according to claim 1 further comprising the step of changing the treatment unit between the first and second states by manually repositioning the at least one part of the treatment unit.

15. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the treatment unit comprises an actuator and further comprising the step of causing the actuator to reposition a part of the treatment unit to thereby change the treatment unit between the first and second states.

16. The method of treating an inside volume of a mobile vehicle according to claim 15 further comprising the step of controlling the actuator from a location spaced from the actuator.

17. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the air mover is mounted on the frame.

18. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the mobile vehicle has an entry door that has open and closed positions, the treatment unit has on and off states and a disabling structure and further comprising the step of causing the disabling structure to change the treatment unit in the on and second states to be changed into the off state as an incident of the entry door changing from the closed position into the open position.

19. The method of treating an inside volume of a mobile vehicle according to claim 1 wherein the UV rays generated by the UV light source are not capable of penetrating glass.