A Chicago based company called Salt has started a crowdfunding campaign for their semi-lethal defensive weapon for personal use only. The founders were inspired to build such a weapon after witnessing a shooting near their home in Chicago that pushed them into building this weapon. The pneumatic pistol is designed to stop intruders using an incapacitating powder that temporarily blinds them while drastically lessening the possibility of family members being killed in an accident.
The Salt is a Carbon Dioxide powered air-gun that shoots hollows plastic spheres much like paint-balls. But instead of paint these spheres release a fine powder made of oleoresin capsicum and other ingredients on impact. This mixture is extremely irritating and causes strong burning sensation and makes it difficult to breathe for anyone who encounters it. This is more potent than the one used for military purposes because the effects last for up to 50 minutes and this can be used to hit the attacker directly or create a cloud around you for protection.
Take a look at this video below: