One of our sets (or kits) come with an acid activator. Citric Acid and Hydrochloric Acid are the two options you have to choose between.

Both Citric Acid or Hydrochloric Acid will provide you with the best way to create the powerful molecule Chlorine Dioxide. So, why are there two choices then?

Citric Acid is widely used as a natural disinfectant, and can be derived from natural sources such as fruits and vegetables. Historically, Citric Acid has been the classic or most common activator.

Hydrochloric Acid naturally mimics the acid found our stomachs for digesting food. Some people find that the Hydrochloric Acid kits create a water with "no taste."

At the end of the day, it all comes down to personal preference. You can be absolutely confident that, whichever 1ness Kit you choose, you would not be going wrong selecting either of the kit types.