NAOH is short for Sodium hydroxide. Don't let the word deter you - NAOH is made from 2 simple materials, Salt + Water.
NAOH can be made with salt water and electricity. It may be produced at different PPM (parts per million) concentration and pH for different applications.
NAOH works by the power of chlorination, a type of oxidation. Negatively charged NAOH is deadly to the structure of germs, and germs are not able to develop a resistance to NAOH.