In anticipation of the greenhouse gas Dymel 134 A being discontinued as a propellant gas in aerosols Aerko started development of a new nonflammable formula in 2013. After three years of development, Aerko introduced the NF products at the Florida Police Chiefs Association Summer Conference. The New Formula is environmentally friendly, uses no aggressive solvents, and holds a better stream for specific targeting with no secondary contamination. Available as CS/OC blend FREEZE+P or OC only PUNCH II, the Aerko New Formula Non Flammable Subject Control Sprays are available now.