A 12V portable air compressor is a must-have accessory for almost any vehicle, but is especially useful for off-road vehicles and ATV campers. Flat tires are just part of the territory when riding in the back country. Getting stuck in the back country with a flat or under inflated tire can really ruin a good ride.
12V Portable air compressors have a number of uses, not the least of which is an emergency air supply for tires with slow leaks or for re-inflating flat tires that have been patched on the trail. For campers, having an air compressor to inflate air mattresses can be very useful. For fisherman, having an air compressor for float tubes and inflatable boats means getting out on the water quicker.
There are different sizes of compressors available, so you will want to get one that will handle the tasks you need it for. I actually have two, a small one that I carry on my ATV and a larger one I carry in my truck. When deciding on the right air compressor there is a term you need to understand and that is Duty Cycle.