Dispensers are guaranteed against normal wear and tear, subject to correct installation, usage and dispenser care, Biocote silver ion technology effectively reduces bacteria, mold and fungi on the surface of Biocote® treated SC Johnson Professional® dispenser buttons within as little as 2 hours and achieves up to 99.99%, The ultrasonically sealed cartridge and pump mechanisms prevent the ingress of air into the cartridge during use to help prevent product contamination and ensure fresh product is dispensed every time, Unique Locking Mechanism helps prevent unauthorized access, pilferage and product contamination.