Pepper Spray Use In Columbus, Ohio Is The Use Of Pepper-spray Legal In Thurston County Washington For Self Defense?

Is the use of pepper-spray legal in Thurston County Washington for self defense? - pepper spray use in columbus, ohio

I need to know whether it is legal to possess pepper spray in his home in Washington, Thurston County. I am a certified instructor for Buti military does not know the local laws on this subject. Can someone help me.