Pocket and key chain units are only good for a few shots but are still worth their limited size and useful range because they are easy to conceal.
Larger "police" models are superior in strength and effective range but they are not as easy to carry without attracting attention. Here in New York State where I live, OC or Pepper spray is legal but the wise man must watch where he carries them. If you try to access a government building such as the local Department of Motor vehicles or the Cop Shop, you may have it confiscated just for being stupid. You will have earned that title the old fashion way. Stupid is as stupid does. Don't leave these units in a hot car unless you cherish long walks...they do explode if the pressure goes up.
A very handy version worth owning is defencive Bear spray. These units are also affective on humans should you be assaulted while on the trail.The surprise defensive spray on the list is Hornet and Wasp spray. These cans are large and not fit for carrying around with you but are great expedient chemical weapons with twenty (20) foot range and good dispersal (pattern) making it easy to hit a target. The chemical does a fair job in discouraging scumbags and repelling attackers.
Keep a can in the car-garage-on the porch.Watch your six
RJ
