Ideally, you should use just enough bear spray to deter the bear from approaching any closer towards you and your camp, providing you with adequate time to make your own getaway. The aim is to spray slightly above the bears ahead as gravity will cause the spray to fall down towards the eye area. Deploy in 2-3 second bursts from an effective but safe distance. If the bear is still on the approach, try again but aiming more directly into the face.\r