The 0.68 inch pepper ball is filled with more pepper powder, which is very effective and has a diffusion range of 10 square meters.
The pepper powder filled with a 0.5 caliber pepper ball is only about one-third of the 0.68 caliber pepper powder, and the diffusion range is only about 5 square meters.
The PAVA content of 0.68 caliber pepper balls ranges from 1% to 5%. Because of the large amount of powder, even if the PAVA content is 1%, the effect is very good. The PAVA content of pepper balls used by police for riot control is about 5.
And the PAVA content of the 0.5 caliber pepper ball should be more than 5%, otherwise it will not play a defensive role.