Contains an EPA registered antimicrobial additive that is molded directly into the pen's plastic components which suppresses the growth of bacteria, molds, mildew and fungi on the product, especially in high-moisture environments.
Antimicrobial additive includes various elements, such as Zinc and enhances product freshness, fights undesired odors, staining and product degradation.
Antimicrobial additive should last the life of the plastic, unless the plastic is destroyed.