General description

Anaerotest® strips are designed to indicate an anaerobic atmosphere via a color change on the test strip reaction zone. An anaerobic atmosphere favors the growth of anaerobic bacteria, and this strip can indicate the absence/presence of oxygen in the environment. The methylene blue dye in the absence of oxygen undergoes a chemical reduction reaction and turns colorless thereby, indicating a total anaerobic atmosphere. The reaction zone on the test strip returns to normal (blue color) upon re-introduction of oxygen in the environment.